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Arunachal Pradesh Protests: Siang Dam, Indigenous Rights and Activism

📅 Last updated: 27 October 2026📖 20 dated entries✎ By Nazish Fatima

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In short

Protests over the proposed 11,200-MW Siang dam escalated in October 2026. A sourced timeline of the Siang movement, Indigenous land rights, refugee

Latest Story

Arunachal Pradesh protests over the proposed 11,200-MW Siang Upper Multipurpose Project escalated into clashes, arrests and renewed demonstrations in October 2026. For many residents, especially the Indigenous Adi community of the Siang valley, the dispute is about ancestral land, displacement and whether communities have a real say, while the government calls the project important for flood management, water security and strategic needs. The state’s protest history has other strands too: refugee settlement, the Inner Line Permit and identity.

The Siang river flowing between forested hills in Arunachal Pradesh with golden grass in the foreground
The Siang river running through forested hills in Arunachal Pradesh. Photo: ঈশান জ্যোতি বৰা, via Wikimedia Commons, CC BY-SA 4.0, resized.
Last updated: 27 October 2026

Status: protests against the proposed 11,200-MW Siang Upper Multipurpose Project escalated on 23 October. By 24 October police reported at least three FIRs and 15 people arrested or detained (Down To Earth).

  • Talks: Chief Minister Pema Khandu met legislators and Indigenous organisations on 25 October.
  • Project: NHPC is preparing a pre-feasibility report; this is a study stage, not final approval.
  • Next update: when the status of the arrests, any talks or a decision on the report is clear.

💡 Short Answer

Opponents of the Siang Upper Multipurpose Project, led by Adi community groups, fear displacement, loss of land and river damage, and say consultation has been inadequate. The government says the 11,200-MW project would help manage floods and water, and answer China’s upstream dam plans. It is at pre-feasibility stage. On 24 October police reported 15 arrested or detained after clashes in Pasighat.

⚡ Arunachal Pradesh Protests: Quick Facts
Project11,200 MW (proposed)
DeveloperNHPC
StagePre-feasibility
Clashes23 Oct 2026, Pasighat
Held by 24 Oct15 arrested or detained
Villages at risk27 (SIFF estimate)

The Siang Project at a Glance

Capacity figures are proposals, not operating output, and they differ between reports.

Bar chart of proposed capacity: Lower Siang plan 2,700 MW, Siang Upper 9,500 MW in 2008, NITI Aayog proposal 10,000 MW in 2017, Siang Upper Multipurpose 11,200 MW in 2026, and China's Yarlung Tsangpo project 60,000 MW
Chart: the 11,200-MW Siang proposal against earlier Siang plans and China’s 60,000-MW Yarlung Tsangpo project. Chart by AiTimeline from The Indian Express, Scroll.in and Business Today.
YearProposalCapacityNotes
2010Lower Siang Hydroelectric Project2,700 MWTwo stages (1,500 and 1,200 MW); reservoir 51.51 sq km
2008Siang Upper9,500 MWDeclared a National Project
2009Siang Upper, two stages6,000 + 3,750 MWSplit by NHPC to reduce submergence
2017Siang Upper, merged10,000 MWNITI Aayog proposal
2026Siang Upper Multipurpose Project11,200 MWPre-feasibility stage; some reports say about 11,000 MW

The Siang is the upper course of the Brahmaputra; upstream in Tibet it is the Yarlung Tsangpo. The government points to China’s 60,000-MW lower Yarlung Tsangpo project, approved in December 2024, as the reason for a large storage project on the Siang (The Indian Express). Community groups estimate the reservoir could submerge 27 villages and displace 1–1.5 lakh people; no official assessment has been published, since detailed studies come only if the pre-feasibility report finds the project feasible (Mongabay India).

⚡ Quick Answers — AI Overview Ready

Siang Dam Protests: Key Questions

Why are Arunachal Pradesh residents protesting?
Mainly against the proposed 11,200-MW Siang dam. Opponents fear displacement, loss of ancestral land and environmental harm, and say they were not properly consulted. The government says it is for floods, water security and strategic needs.
What happened on 23 October 2026?
A 12-hour bandh in the Siang valley was largely peaceful by day. Clashes followed in Pasighat in the evening: police said 200 to 300 people threw stones, and used tear gas. An NHPC office and police vehicles were damaged.
Is the dam approved?
Not for construction. NHPC is preparing a pre-feasibility report. If it finds the project feasible, social impact, environmental impact and detailed project report stages would follow.
Are all Arunachal protests about the dam?
No. There are three separate strands: anti-dam campaigns, Inner Line Permit and identity debates, and the Chakma-Hajong refugee dispute. They have different histories and demands.
📚 Key Takeaways

The Siang Protests in Nine Points

  • Project: the proposed 11,200-MW Siang Upper Multipurpose Project, at pre-feasibility stage.
  • Opposition: led by Adi community groups and the Siang Indigenous Farmers’ Forum.
  • Escalation: arrests from 9 October, a sit-in on 22 October, clashes on 23 October.
  • Arrests: at least 15 arrested or detained by 24 October, per police; four held under a state anti-unlawful-activities law.
  • Government case: floods, water security and China’s upstream dam.
  • Local case: land, displacement, river ecology and consent.
  • History: a dam on the Siang was first proposed in 1982; protests began around 2008–09.
  • Not one movement: the Chakma-Hajong and Inner Line debates are separate strands.
  • Next: talks, the arrests’ legal status and the pre-feasibility report.

Arunachal Pradesh Protests Timeline, Latest First

From the October 2026 clashes back to the 1873 Inner Line regulation. Each entry is tagged and ends with why it matters.

24–27 Oct
2026

Arrests, more forces and a first round of talks Latest

24 Oct: 3 FIRs, 15 held25 Oct: CM meets legislators27 Oct: youth strike reported

By 24 October police had registered at least three FIRs and said 15 people were arrested or detained, according to Inspector-General of Police Hibu Tamang; he said police had information that could identify others involved (Down To Earth). Police said around 40 security personnel were injured, and authorities restricted public gatherings (Business Today). Additional CRPF personnel, including two Rapid Action Force companies, were moved into the Siang valley, and demonstrations spread to Upper Subansiri district (Nation Path).

On 25 October Chief Minister Pema Khandu met legislators and Indigenous organisations (Business Today). Protesters’ demands include halting pre-feasibility work, releasing those held, quashing the FIRs and withdrawing central forces (Arunachal Times). Arrests are not findings of guilt, and the figures may change.

Why it matters: Whether talks start before more arrests is the near-term test; the pre-feasibility work is still not final approval.
23 Oct
2026

Bandh turns into clashes in Pasighat Protest

23 Oct 202612-hour bandh, 5am to 5pmClashes from about 5pm

Four organisations, the Siang Indigenous Farmers’ Forum, the SUMP Affected Area Youth Association, Adi Bane Kebang Youth and the Adi Galo Welfare Society, called a 12-hour bandh. The Bogong Banggo Kebang of Pasighat did not back it, saying it had not been told in advance (Down To Earth; Arunachal Times). It was largely peaceful by day. Between about 5pm and 6:30pm, police said 200–300 people threw stones at police and a magistrate, and police used tear gas.

Reports say an NHPC office was set on fire, part of Pasighat police station was damaged, at least nine police vehicles were damaged, and the homes of MLAs Oni Panyang and Ninong Ering and BJP state president Kaling Moyong were attacked (Down To Earth). Sit-in participant Otul Jerang said the violence was “completely contrary to our movement’s ideology and objectives.”

Why it matters: The movement’s own speakers split on the violence, so the clashes are not the whole of the opposition.
22 Oct
2026

24-hour sit-in at Miracle Ground Protest

22 Oct 2026PasighatPermission granted

A 24-hour dharna began at 2pm on Thursday 22 October at Miracle Ground, organised by the Save Siang, Save Indigenous Rights Committee, with the administration’s permission (Arunachal Times). Its demands: halt pre-feasibility reports and surveys, release detained activists, quash the FIRs and withdraw central armed police. Former chief minister Gegong Apang repeated his call to scrap the project and urged Adi-belt legislators to join the movement.

Why it matters: A permitted, peaceful sit-in sat alongside the later clashes; both are part of the record.
18–20 Oct
2026

Youth meeting in Pasighat, then a march Protest

18 Oct meeting19 Oct rally refused20 Oct march

A consultative meeting of young people in Pasighat on 18 October began the mobilisation. The East Siang administration denied permission for a rally on 19 October (Arunachal Times). A march nonetheless went from Daying Ering School ground to Gandhi Chowk on 20 October (Down To Earth).

Why it matters: The Siang movement widened from village councils to a youth-led street campaign in under a week.
9–13 Oct
2026

Arrests under a state anti-unlawful-activities law Official move

9 Oct arrests began10 Oct four held under APUAPA8 Oct Rijiju calls for dialogue

At least 10 people were arrested from 9 October, four of them under the Arunachal Pradesh Unlawful Activities (Prevention) Act, 2014 (Down To Earth). On 10 October protesters took to the streets in Geku, Upper Siang, demanding the release of the four; the SIFF Youth Wing urged a boycott of government consultations (The Indian Express). Two days before, Union minister Kiren Rijiju had called for dialogue with senior Adi members.

Why it matters: Detentions under a special state law turned a survey dispute into a question of civil liberties.
14 Sep–5 Oct
2026

Forces move in; MLA’s house attacked; lathi-charge alleged Protest

14 Sep deployment30 Sep MLA’s home attacked4 Oct clashes

On 14 September the state sent hundreds of police and paramilitary personnel to Uggeng and Komkar, two of the three proposed dam sites, and residents blocked roads (Mongabay India). Summons were issued to at least three SIFF-linked protesters under the Prevention of Damage to Public Property Act, 1984. On 30 September, during Khandu’s visit, protesters allegedly attacked an MLA’s house and set vehicles on fire; on 4 October protesters alleged excessive force and security forces alleged arson at Uggeng (The Indian Express). On 5 October, news pages covering the protest sites were reported blocked.

Why it matters: Accounts of the 4 October clashes conflict; neither side’s version has been independently established.
The Siang river flowing between forested hills in Arunachal Pradesh with golden grass in the foreground
The Siang river running through forested hills in Arunachal Pradesh. Photo: ঈশান জ্যোতি বৰা, via Wikimedia Commons, CC BY-SA 4.0, resized.

MoU claim, and a CBI notice to a protest adviser Official move

Jun: 110 Geku households MoU20 Aug: CBI notice21 Sep: CM orders action

In June Khandu said 110 households from Geku had signed an MoU backing the pre-feasibility report. On 20 August the CBI served a notice on Bhanu Tatak, legal adviser to the SIFF, in an FIR alleging ₹17.6 lakh in foreign contributions was received without FCRA permission; the SIFF Youth Wing called it harassment (Mongabay India). On 21 September Khandu said he had told the Chief Secretary to act against government employees opposing the project (The Indian Express).

Why it matters: The FCRA case is an allegation, not a finding.

Adi clans hold a supreme council after 25 years Protest

Aug 2025Geku, Upper SiangBogum Bokang Kebang

After a gap of 25 years, a Bogum Bokang Kebang, a supreme council bringing together Adi clans, was held at Geku in Upper Siang to oppose the dam and its pre-feasibility studies. The SIFF says the reservoir could submerge 27 villages, affect dozens more and displace 1–1.5 lakh Indigenous people (The Indian Express). Those figures are the community’s estimate, not an official assessment, which is still to be made.

Why it matters: A council this rare shows how seriously the Adi community treats the decision.
Wide view of the Siang river with a bridge and sandbanks where it leaves forested hills near Pasighat
The Siang river leaving the hills near Pasighat, where it widens towards the Assam plains. Photo: Rashid Jorvee, via Wikimedia Commons, CC BY-SA 4.0, resized.
Dec 2024–
2025

China approves its own giant dam; India says it is monitoring Official move

Dec 202460,000 MWLower Yarlung Tsangpo

Beijing approved its 60,000-MW lower Yarlung Tsangpo project in December 2024, five cascade stations near the Indian border (The Indian Express). In March 2025 the Ministry of External Affairs told Parliament it was monitoring China’s plans (Business Today). Khandu has framed the Siang project as protection against sudden water releases (Deccan Herald). China says its project will not harm downstream areas.

Why it matters: The strategic case rests on this upstream project; the local objection rests on the valley.
8 Jul
2024

Activists detained before a minister’s visit Protest

8 Jul 2024Ebo Mili, Dugge ApangReleased after hours

Police detained activists Ebo Mili and Dugge Apang before Union power minister Manohar Lal Khattar’s visit; they had planned to hand over a memorandum opposing the project, and were released after a few hours. On 22 June the Upper Siang administration had asked panchayat members and headmen of 12 potentially affected villages to cooperate with pre-feasibility surveys, citing national interest (Scroll.in). In March 2024 about 1,500 residents had protested NHPC’s corporate-social-responsibility funding.

Why it matters: Even surveys became contested, because residents feared they would build momentum for a decision already taken.

Survey complaint, a funding approval and a forest-law change Official move

May 2023: ₹350 croreJul 2023: SIFF complaintForest Act amended

On 24 May 2023 the Union power ministry approved ₹350 crore for social development works in the region; in July the SIFF filed a police complaint alleging NHPC surveyed Parong without villagers’ consent. The Forest (Conservation) Amendment Act, 2023 allows forest diversion for strategic projects within 100 km of international borders without forest clearance (Scroll.in). The Act does not by itself clear any project.

Why it matters: Critics read the forest change as weakening local leverage; supporters read it as speeding strategic works.

NHPC is assigned the pre-feasibility report Official move

Apr 2022Ministry of Jal ShaktiNHPC

The Ministry of Jal Shakti assigned NHPC to prepare the pre-feasibility report (Business Today). A pre-feasibility report is not final construction approval; the Social Impact Assessment, Environmental Impact Assessment and Detailed Project Report would follow if it finds the project feasible (Mongabay India).

Why it matters: Every later flashpoint is about this study, not about construction.

NITI Aayog merges two stages into one large project Official move

2017NITI Aayog10,000 MW

NITI Aayog proposed replacing the planned Siang Upper Stage-I and Stage-II projects with a single storage project (The Indian Express), which would have been India’s largest hydropower project at 10,000 MW (Scroll.in). It has since grown into the 11,200-MW project now disputed.

Why it matters: Headline capacity has grown from 9,500 MW in 2008 to 11,200 MW today.

Lower Siang protests and a lathi-charge Protest

10 Mar 2010 memorandum26 May 2010 lathi-chargePasighat

On 10 March 2010 several organisations gathered at the District Collector’s office in Pasighat and submitted a memorandum against the Lower Siang Hydroelectric Project and other mega-projects on the Siang. Before the scheduled public hearings, strikes and demonstrations spread across Pasighat and the valley. On 26 May 2010 protesters and villagers from Pongging were lathi-charged by the CRPF; two women were seriously injured and the hearing was cancelled (Katwal study). The Lower Siang plan was 2,700 MW, developed by Jaypee Arunachal Power Limited, a Jaiprakash Associates subsidiary, with a reservoir of 51.51 sq km.

Why it matters: The pattern of hearings disrupted by protest began here, 16 years before the 2026 clashes.
2008–09

Siang Upper declared a National Project, then split Official move

2008: 9,500 MW2009: two stagesNHPC

In 2008 the 9,500-MW Siang Upper was declared a National Project; in 2009 NHPC divided it into two stages of 6,000 MW and 3,750 MW to reduce submergence (The Indian Express). Local protests against the dam began around this time (Scroll.in). Changes to the design did not settle whether the risks were acceptable to affected villages.

Why it matters: Smaller reservoirs did not end the opposition.

Supreme Court bars eviction of Chakmas pending citizenship Refugee dispute

9 Jan 1996NHRC v State of Arunachal PradeshAbout 65,000 people

In National Human Rights Commission v State of Arunachal Pradesh, decided 9 January 1996, the Supreme Court dealt with a petition for about 65,000 Chakma/Hajong people and a report that the All Arunachal Pradesh Students’ Union had issued “quit notices” to alleged foreigners to leave by 30 September 1995 (Indian Kanoon). The court directed that while an individual’s citizenship application is pending, the state shall not evict or remove that person.

On 17 September 2015 the court again said they could not be discriminated against pending formal conferment of citizenship (The Indian Express).

Why it matters: A separate strand from the dam: it is about citizenship and settlement, not infrastructure.

Arunachal Pradesh becomes a state Identity

1987Previously NEFA, Union Territory from 1972

Arunachal Pradesh became a state in 1987, and control of Inner Line Permit administration passed from the Centre-appointed Lieutenant Governor to the state government (Shiv Nadar University). By then the AAPSU had built a strong movement against settling Chakmas and Hajongs in the state (The Indian Express).

Why it matters: Statehood moved decisions on land, entry and identity into local politics.
1964–69

Chakma and Hajong families are settled in NEFA Refugee dispute

1964–6914,888 people, 2,748 familiesKaptai dam

The Chakmas and Hajongs fled the Chittagong Hill Tracts in the 1960s after their land was submerged by the Kaptai dam; some also faced religious persecution. The Indian government moved most of them to what is now Arunachal Pradesh: 14,888 people in 2,748 families were settled in 1964–69 (The Indian Express). The 2011 census counted 47,073 Chakmas in the state (Wikipedia). Arunachal has opposed their citizenship, citing demography and resources; they have faced long uncertainty about status.

Why it matters: The refugee dispute began long before the dam row and is a different issue.

Brahmaputra Board proposes a dam on the Siang Official move

1982Siang and Subansiri1990s: Upper, Middle, Lower dams

The Brahmaputra Board proposed a dam on the Siang in 1982, and Upper, Middle and Lower Siang dams followed in the 1990s (The Indian Express). The Katwal study notes that apprehensions about damming the Siang date from the Board’s plans in the late 1970s and 1980s (Katwal study).

Why it matters: The dam idea predates the China argument by decades.
1873

The Inner Line system begins Identity

1873Bengal Eastern Frontier RegulationRetained in NEFA

The Bengal Eastern Frontier Regulation of 1873 created the Inner Line Permit system, originally to protect rubber and elephant dealers in Cachar and Sylhet; it was not designed mainly to protect frontier tribes. After independence it was treated in NEFA as a tool for protecting Indigenous rights and culture, and Parliament debated its validity in the 1950s and 1960s, with Ram Manohar Lohia opposing it in 1958 (Shiv Nadar University). Arunachal still regulates the entry of Indian citizens who are not Indigenous residents.

Why it matters: The ILP debate is about who may enter and settle, which feeds the settlement and demography arguments.

October 2026 at a Glance

Day-by-day list of the October 2026 Siang protests: arrests from 9 October, youth meeting 18 October, march 20 October, sit-in 22 October, bandh and clashes 23 October, 15 held 24 October, talks 25 October
October 2026 at a glance: from the first arrests on 9 October to the chief minister’s meetings on 25 October. Graphic by AiTimeline from Down To Earth, Arunachal Times and Business Today.

Why Do People Protest in Arunachal Pradesh?

Five recurring reasons, described as the parties describe them.

1. Ancestral land and displacement. For the Adi, land is tied to family history and community identity; they revere it as belonging to Abo Tani, their primordial ancestor (The Indian Express). Large reservoirs can submerge fields, forests and homes.

2. Environmental concerns. The eastern Himalayas are ecologically sensitive. These are questions for project-specific assessment: activists’ concerns are not proof of a particular harm, and claims of national benefit do not remove the need for independent study.

3. Consultation and consent. Residents ask whether meetings represent all affected families and whether opposition can change a decision. The government says it will discuss benefits and risks; protesters want surveys halted first.

4. Indigenous identity and migration. The Inner Line Permit and the Chakma-Hajong dispute reflect concerns about land and demography; they also involve the rights of refugee families, who should not be blamed collectively for a political dispute.

5. National security versus local priorities. Supporters point to China’s upstream plans; opponents ask who bears the cost, and argue strategic importance does not remove the need for safeguards and engagement. Analyst Himanshu Thakkar argues India should seek joint impact assessment rather than force a dam on its own people (The Indian Express).

Who Is Involved

GroupRole in 2026Reported position
Siang Indigenous Farmers’ Forum (SIFF)Local organisation; called the 23 Oct bandhOpposes the project; says 27 villages could be submerged
Adi Bane Kebang United / YouthAdi community body; bandh organiserCalls for scrapping the project and withdrawing armed forces
SUMP Affected Area Youth AssociationBandh organiserOpposes the project
Save Siang, Save Indigenous Rights CommitteeOrganised the 22 Oct sit-inWants surveys halted, activists released, FIRs quashed
NHPCState-owned developer preparing the reportPre-feasibility study only; not final approval
Arunachal Pradesh governmentBacks the projectSays it will discuss benefits and risks with communities

Three Strands of Activism in Arunachal Pradesh

The dam row is one strand; the refugee and Inner Line debates are different.

Three boxes: anti-dam campaigns about land and consultation, Inner Line Permit and identity debates about regulated entry, and the Chakma-Hajong dispute about settlement and citizenship
Three separate strands of activism in Arunachal Pradesh: anti-dam, Inner Line Permit and identity, and the Chakma-Hajong dispute. Graphic by AiTimeline from The Indian Express and Shiv Nadar University.

The anti-dam campaign concerns infrastructure, land and consultation. The Chakma-Hajong dispute concerns refugee settlement and citizenship: the Supreme Court has barred eviction while applications are pending, and the state has opposed permanent settlement. The Inner Line Permit regime concerns who may enter and settle. They share questions about identity and land, but should be read separately.

What Happens Next?

1. Talks. Khandu has offered discussion with communities and met legislators and Indigenous groups on 25 October (Business Today). Whether protesters join while surveys continue is unclear.

2. Arrests and cases. The legal status of those held, and the CBI FCRA case against an SIFF adviser, will play out in court. Arrests are not proof of guilt.

3. The report. The pre-feasibility report is the next technical step; if it is favourable, social and environmental impact assessments and a detailed project report would follow (Mongabay India).

4. Security presence. More central forces were moved in after 23 October (Nation Path); protesters demand their withdrawal.

Key People

Chief Minister

Pema Khandu

Leads the state government; says the dam will be built only after all studies are complete and met legislators and Indigenous organisations on 25 October.

Police

Hibu Tamang

Inspector-General of Police; reported at least three FIRs and 15 arrests or detentions by 24 October.

Former chief minister

Gegong Apang

Repeated his call to scrap the project and urged Adi-belt legislators to join the movement.

Activists

Ebo Mili and Dugge Apang

Detained on 8 July 2024 before a minister’s visit; released after a few hours.

Union minister

Kiren Rijiju

From Arunachal; on 8 October called for dialogue with senior members of the Adi community.

SIFF legal adviser

Bhanu Tatak

Served a CBI notice on 20 August in an FCRA case; the case is an allegation, not a finding.

Explore More Timelines

People Also Ask

Where is the Siang river?
The Siang flows from Tibet, where it is the Yarlung Tsangpo, through Arunachal Pradesh and becomes the Brahmaputra in the Assam plains.
Who is leading the Siang dam protests?
Groups include the Siang Indigenous Farmers’ Forum, Adi Bane Kebang and a youth association, with a Save Siang, Save Indigenous Rights Committee.
Why is China mentioned?
India cites China’s 60,000-MW dam upstream as a reason for a large storage project on the Siang.
Is the project approved?
Not for construction. NHPC is preparing a pre-feasibility report, which is a study stage.

Frequently Asked Questions About Arunachal Pradesh Protests

Why are people protesting against the Siang dam in Arunachal Pradesh?
Opponents, mainly from the Adi community, fear displacement, loss of ancestral land and environmental damage, and say consultation has been inadequate. The government says the project would help flood management, water security and strategic needs.
What is the Siang Upper Multipurpose Project?
A proposed 11,200-MW hydropower and water-storage project on the Siang river, being studied by NHPC. It is at pre-feasibility stage; a pre-feasibility report is not final construction approval.
How many people could be displaced by the Siang dam?
The Siang Indigenous Farmers’ Forum says the reservoir could submerge 27 villages and displace 1 to 1.5 lakh people. That is the community’s estimate; no official assessment has been published, as detailed studies are pending.
What happened in Pasighat on 23 October 2026?
A 12-hour bandh turned into clashes in the evening. Police said 200 to 300 people threw stones and used tear gas. An NHPC office, part of a police station and vehicles were damaged, and political leaders’ homes were attacked.
How many people have been arrested?
By 24 October police reported at least three FIRs and 15 people arrested or detained, according to the Inspector-General of Police. Arrests began on 9 October, and at least 10 were held by then. Figures may change.
What is the Arunachal Pradesh Unlawful Activities (Prevention) Act, 2014?
A state law under which four protesters were detained on 10 October 2026, according to The Indian Express and Down To Earth. Protesters demand their release.
Who is the Siang Indigenous Farmers’ Forum?
A local organisation opposing the project. Its youth wing urged a boycott of government consultations, and the CBI has served a notice on its legal adviser in an FCRA case, which is an allegation.
Why does the government say the dam is needed?
It cites flood moderation, water security and strategic reasons, pointing to China’s 60,000-MW lower Yarlung Tsangpo project approved in December 2024. China says its project will not harm downstream areas.
What did Pema Khandu say?
He said the dam will be built only after all studies are complete, and that the government will discuss benefits and risks with affected communities. He met legislators and Indigenous organisations on 25 October.
Is construction about to start?
No. NHPC is preparing a pre-feasibility report. If it finds the project feasible, Social Impact, Environmental Impact and Detailed Project Report stages would follow.
How has the project’s capacity changed?
Siang Upper was 9,500 MW in 2008, split into 6,000 and 3,750 MW stages in 2009, merged into a 10,000-MW project in 2017 and is now 11,200 MW. The Lower Siang plan of 2010 was 2,700 MW.
What was the 2010 Lower Siang protest?
On 10 March 2010 groups submitted a memorandum in Pasighat against the Lower Siang project. On 26 May 2010 the CRPF lathi-charged protesters at Pongging, seriously injuring two women, and a public hearing was cancelled.
What happened in July 2024?
Police detained activists Ebo Mili and Dugge Apang before Union power minister Manohar Lal Khattar’s visit on 8 July. They wanted to submit a memorandum and were released after a few hours.
What is the Forest (Conservation) Amendment Act, 2023?
It allows forest diversion for strategic projects within 100 km of international borders without forest clearance, according to Scroll. It does not by itself clear any project.
Who are the Adi people?
An Indigenous community of the Siang valley. Their villages are traditionally run by kebang councils, and a Bogum Bokang Kebang of Adi clans met in August 2025 after 25 years to oppose the dam.
What is the Inner Line Permit?
A permit regime from the Bengal Eastern Frontier Regulation of 1873 that regulates entry of Indian citizens who are not Indigenous residents into protected areas, including Arunachal Pradesh.
Who are the Chakmas and Hajongs?
People from the Chittagong Hill Tracts displaced by the Kaptai dam in the 1960s, whom India settled in what is now Arunachal Pradesh. About 14,888 were settled in 1964 to 1969; the 2011 census counted 47,073 Chakmas.
What did the Supreme Court decide on the Chakmas?
On 9 January 1996 it directed that no Chakma with a pending citizenship application be evicted. In September 2015 it said they could not be discriminated against pending formal conferment of citizenship.
Are the dam and refugee protests the same movement?
No. The anti-dam campaign is about land, displacement and consultation; the refugee dispute is about settlement and citizenship; the Inner Line debate is about regulating entry. They share themes of identity and land but have different histories.
What do protesters want?
They want pre-feasibility surveys halted, detained activists released, FIRs quashed and central armed forces withdrawn, according to Arunachal Times. The Siang protest groups also want the project scrapped.
Was the violence supported by the movement?
Not by all of it. Sit-in participant Otul Jerang said the violence was completely contrary to the movement’s ideology. Police and protesters give different accounts of several clashes.
Will this page be updated?
Yes. It will be updated with the status of arrests, any talks and any decision on the pre-feasibility report.

A Dispute About Who Decides

Across the dam, refugee and Inner Line debates, protest in Arunachal Pradesh has returned to one question: who decides, and who bears the cost. The October 2026 unrest brings it to a head. The outcome will depend on the technical studies and on whether authorities can answer local objections through transparent assessment, lawful procedure and dialogue. This page will be updated as the arrests, talks and the report develop.

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⚠️ Editorial Note

Last updated 27 October 2026. Arrest figures, legal proceedings, project capacity and decisions may change; allegations are attributed to the parties, and arrests are not proof of guilt. Proposed impacts are distinguished from findings of formal assessments. We checked the source brief and corrected it: the first arrests began on 9 October, with four detained on 10 October under the state law; the 22 June 2024 village meeting involved 12 villages; the 2025 entry now rests on the August 2025 Adi council. We dropped brief claims we could not source, namely Assembly resolutions of 1992 and 1994 on the Chakmas and a general “2019 resistance” entry. The Chakma-Hajong entry cites the 1996 Supreme Court judgment and The Indian Express explainer of 2015.

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