India–US–UK Relations Timeline: Trade, AI, Defence & Technology (2026)

2000s: The India-US relationship begins accelerating after the 2005 civil nuclear framework and the 2008 US-India Civil Nuclear Agreement, ending decades of technology-denial policies dating to India’s 1974 and 1998 nuclear tests.

2010s: Defence and technology cooperation expands through foundational agreements — LEMOA (2016), COMCASA (2018) — and India is designated a Major Defense Partner of the US in 2016. India-UK ties continue on a slower track focused on trade dialogue and education.

2020: The pandemic and global supply-chain shocks push India, the US and like-minded economies toward “China+1” diversification thinking, accelerating interest in semiconductor and manufacturing partnerships.

2021: India and the UK adopt the “Roadmap 2030” for a comprehensive strategic partnership (May 2021) and launch the Enhanced Trade Partnership, the precursor to full FTA talks.

2022–2023: India-US launch the Initiative on Critical and Emerging Technology (iCET) in January 2023, covering AI, semiconductors, quantum and defence co-production. India-UK FTA negotiations formally begin in January 2022.

2024: India-US and India-UK cooperation broadens across defence and technology, with continued iCET working-group meetings and UK general-election-related pauses in FTA talks.

2025: A pivotal year — India-UK sign CETA (July 24, 2025); the US and UK sign a Technology Prosperity Deal (September 18, 2025); India and the US sign a 10-year Defence Framework Agreement (October 31, 2025); iCET evolves into the TRUST initiative.

2026: Tariff negotiations, AI investment, semiconductor fabs, critical-minerals pacts, defence co-production and CETA implementation dominate the year — covered in detail in the sections below.

iCET — now continued under the name TRUST — is a framework and coordination initiative, not a treaty. It is jointly steered by the two countries’ National Security Advisors and organised around working-level tracks rather than a single signed legal instrument. Its core areas are:

The Comprehensive Economic and Trade Agreement (CETA), together with a linked Double Contribution Convention on social security, is India’s official name for the deal. Its timeline of legal status:

On day one of implementation, more than 50 export consignments worth over $140 million moved from India to the UK under the new terms. Under CETA, roughly 99% of India’s exports to the UK get duty-free access, while India removes tariffs on about 89.5% of its tariff lines for UK goods (Scotch whisky, cars and select other categories on phased schedules rather than immediately). The agreement also covers services market access, investment protection, digital trade provisions and a mobility scheme for Indian professionals. Current bilateral trade of roughly $56 billion is projected by industry bodies such as ASSOCHAM to reach $100–120 billion by 2030 — a projection, not a guaranteed outcome.

Digital Trade and Data Rules Under CETA

CETA’s digital-trade chapter addresses cross-border business, electronic contracts, cybersecurity cooperation and regulatory compatibility for services firms operating between the two countries. It is a trade-agreement framework, not a data-protection adequacy decision: as of August 2026, the UK has not granted India a UK GDPR adequacy finding, so companies moving personal data from the UK to India still rely on Standard Contractual Clauses or Binding Corporate Rules rather than an adequacy-based transfer. CETA’s provisions sit alongside, not instead of, that separate UK GDPR framework — covered in full in the data-flows section below.

The US and UK run one of the world’s oldest formal strategic relationships — intelligence sharing through the Five Eyes network, deep defence-industrial ties, and, since September 2025, a dedicated technology pact. On September 18, 2025, Presidents Trump and PM Starmer signed a Technology Prosperity Deal covering AI, quantum computing and civil nuclear energy, alongside roughly $42 billion (£31 billion) in company-level commitments — including a £22 billion Microsoft cloud/AI infrastructure investment, £11 billion from Nvidia for UK “AI factories,” and £5 billion from Google for a Hertfordshire data centre.

That deal was partly suspended in December 2025 after the UK’s autumn Budget reaffirmed its Digital Services Tax, a move Washington linked to broader disputes over the UK’s Online Safety Act and food-standards rules. Talks resumed in early 2026; as of August 2026, public reporting shows the UK still retaining its Digital Services Tax while negotiations over the deal’s future continue, without a confirmed full resolution.

India’s interest here is indirect but real: the US and UK jointly influence global AI-governance norms, semiconductor export-control policy and financial-market standards that India has to operate within, regardless of whether India is a party to the underlying US-UK agreement.

February 2, 2026: President Trump announced a framework deal with India cutting the additional Russian-oil-linked tariff, taking the effective US tariff on Indian goods from 50% down to 18%, in exchange for India’s commitment to curb Russian oil purchases. The White House framed it as an “Interim Agreement on reciprocal trade”; a full bilateral trade agreement was not concluded at this stage — talks continued.

February 16–21, 2026: India hosted the India AI Impact Summit at Bharat Mandapam, New Delhi — over 20 heads of government, delegates from 118 countries and 100+ global AI CEOs. The summit adopted the New Delhi Declaration on AI Impact (endorsed by 89 countries) on February 19, and catalysed announced investment commitments exceeding $200 billion across AI infrastructure, models, hardware and applications. This was a multilateral summit, not an India-US-UK-specific event, but both the US and UK sent official delegations.

February 28, 2026: PM Modi inaugurated Micron’s $2.75 billion semiconductor assembly-and-test facility in Sanand, Gujarat — the clearest single US-India semiconductor milestone of the year.

July 15, 2026: CETA and the linked Double Contribution Convention entered into force (detailed above).

July 2026: India and the UK launched an Autonomous Platforms and Uncrewed Systems Working Group at the Farnborough Airshow, an industry-led initiative on joint development of uncrewed defence technology.

April 2026: GE Aerospace and Hindustan Aeronautics Limited (HAL) finalised the technical terms for F414-INS6 jet-engine co-production, covering roughly 80% technology transfer of the manufacturing ecosystem. A formal commercial contract was expected by the end of December 2026 — negotiated, not yet signed, as of this writing.

May 26, 2026: India and the US signed a Critical Minerals Framework in New Delhi on the sidelines of the Quad Foreign Ministers’ Meeting, covering mining, processing, recycling and financing across the supply chain.

June 17–19, 2026: India-UK 15th Executive Steering Group defence meeting, London (detailed above).

As of May 2026, India’s Union Cabinet had approved 12 semiconductor manufacturing projects across six states worth roughly ₹1.64 lakh crore in cumulative investment, alongside Tata’s Dholera wafer-fabrication facility (with PSMC) targeting 28nm-and-below nodes, with first silicon expected in 2026–2027. These are Indian government-approved and industry-reported figures; they are not the same claim as a completed, operating fab — construction and ramp-up status should be checked against the latest company disclosures before citing production numbers.

The overlap is real but structured through separate bilateral tracks: India-US cooperation runs through TRUST and the AI Impact Summit’s outcomes; UK-India cooperation runs through the Roadmap 2030’s technology pillar and CETA’s digital-trade provisions; US-UK cooperation runs through the Technology Prosperity Deal. No credible source, as of August 2026, describes a formal “India-US-UK AI alliance.” What exists is three governments pursuing compatible, occasionally coordinated, AI policy goals.

India’s approach centres on what officials call sovereign AI capability — subsidised compute access via the IndiaAI Mission, support for Indian-language models, and scaling AI across population-level public services — alongside continued reliance on US and UK-origin frontier models, chips and cloud infrastructure. Sovereign capability is not the same claim as technological independence; India’s AI stack still depends heavily on US semiconductor and cloud technology.

US policy, under the July 23, 2025 AI Action Plan, prioritises deregulation, faster data-centre permitting and export of the “American AI technology stack” to allies, paired with tighter export controls on adversary access to advanced chips. This is a shift toward innovation speed over the more safety-focused posture of the prior administration, not a claim that the US has no AI policy at all.

UK policy shifted materially in February 2025, when the government renamed the AI Safety Institute to the AI Security Institute, moving its focus from broad AI-safety evaluation toward AI-enabled crime, cybersecurity threats and national security — a narrower mandate than the “safety” branding suggested. The UK still runs model evaluation work inherited from the 2023 Bletchley Park AI Safety Summit, but frames it differently than it did in 2023-2024.

This is best described as an emerging corridor, not a completed supply chain. India’s fabs are mid-construction; announced investment figures reflect government approvals and company commitments rather than finished output. Specific future-fab claims not yet backed by a company announcement are avoided on this page.

Both the India-US and India-UK defence relationships have shifted in emphasis — from India as a buyer of finished weapons systems toward co-development, co-production, and negotiated technology transfer. The clearest verified example is the GE-HAL F414 engine programme: technical terms including an approximately 80% technology-transfer scope were finalised in April 2026, but the formal commercial contract remained under negotiation as of August 2026, with GE reportedly seeking around $800 million from India to establish a dedicated production line and engine costs having risen sharply during negotiations. A signed technology-sharing framework does not by itself guarantee that transfer happens on the original timeline or terms — this deal is a useful test case, not a finished success story yet.

On the UK side, the India-UK Defence Industrial Roadmap (2025) and the Autonomous Platforms and Uncrewed Systems Working Group (launched Farnborough, July 2026) point toward joint work on missile systems, electric propulsion and uncrewed maritime/air systems — still largely at the working-group and roadmap stage rather than delivered hardware.

The F414 programme is widely treated as a bellwether because jet-engine technology has historically been among the most tightly guarded categories the US shares with any partner. The engine is intended to power India’s Tejas Mk2, the Twin Engine Deck-Based Fighter and the initial Advanced Medium Combat Aircraft variant. Confirmed as of August 2026: technical terms and ~80% technology-transfer scope agreed (April 2026); first indigenous unit targeted for 2029. Not yet confirmed: the final commercial contract, exact cost per engine, and whether the $800 million domestic production-line investment is finalised.

AUKUS is a trilateral security pact among Australia, the United Kingdom and the United States announced in 2021. Its “Pillar 2” covers advanced and dual-use technology cooperation among those three members — publicly documented work spans artificial intelligence, quantum technology, cyber capabilities, undersea capabilities, electronic warfare and information sharing. On May 30, 2026, at the Shangri-La Dialogue in Singapore, the three AUKUS partners announced their first Pillar 2 signature project: joint development of payloads and enabling systems for uncrewed undersea vehicles, with first capabilities targeted for service from 2027.

India is not an AUKUS member and has not been formally invited to join Pillar 2 as of August 2026. New Delhi has not taken a strong public position on AUKUS, instead emphasising its own role in the Quad. Some discussion exists in policy and defence-commentary circles about India’s potential overlap with Pillar 2 technology areas, but this is commentary and speculation, not an official engagement track — unlike Japan, Canada, New Zealand and South Korea, which have publicly sought some form of engagement with AUKUS partners on Pillar 2.

This is technology convergence between separate bilateral tracks, not evidence of trilateral or AUKUS-adjacent integration. India pursuing AI, quantum and undersea-systems cooperation with the US and UK individually looks similar to what AUKUS Pillar 2 covers, because all of these governments are working the same handful of strategic technology categories — not because India is participating in AUKUS itself.

Maritime security connects the defence relationships above to trade in a very concrete way: most of India’s trade with Europe and North America physically transits the Arabian Sea, the Red Sea and the Suez Canal or the Bab el-Mandeb strait. Disruption there raises costs across the entire India-UK and India-EU trade relationship, not just for defence planners.

India-UK Naval Cooperation

India and the UK conducted their first-ever combined carrier strike group exercise, Exercise Konkan 2025, off India’s west coast from October 5-9, 2025, with HMS Prince of Wales (leading the UK Carrier Strike Group’s Operation Highmast) and INS Vikrant training together, followed by Royal Navy port calls at Mumbai and Goa and a joint air-defence exercise with the Indian Air Force. This was a bilateral India-UK exercise; the United States was not a participant, and no source describes a trilateral naval exercise involving all three countries as of August 2026.

US Indo-Pacific Cooperation

Separately, India’s maritime cooperation with the US runs through exercises, maritime domain awareness sharing and logistics support enabled by the foundational agreements (LEMOA, COMCASA, BECA) and coordinated in part through US Indo-Pacific Command (INDOPACOM). This is a distinct bilateral channel from the India-UK naval relationship above — INDOPACOM does not command or coordinate India-UK exercises.

Why the Red Sea Matters

Houthi attacks on shipping in the Red Sea and Bab el-Mandeb strait, ongoing in phases since late 2023 and renewed in mid-2026 amid Israel-Iran tensions, pushed Suez Canal container traffic to roughly 60-70% below pre-crisis levels, with most carriers defaulting to the longer Cape of Good Hope route. Indian exporters — especially MSMEs in textiles, engineering goods, chemicals and marine products — absorbed freight-rate spikes of 200-400% at the peak on India-Europe and India-US East Coast routes. The Suez corridor carries roughly half of India’s exports and about 30% of its imports in a normal year, which is why a security problem thousands of kilometres from Indian shores shows up directly in Indian trade costs and, by extension, in how urgently India, the US and UK each treat regional maritime security.

Space Is Becoming a Supply-Chain Industry

Modern space cooperation is no longer only about astronauts and flagship missions. Satellite manufacturing, launch services, onboard electronics and sensors, propulsion components, ground systems, the semiconductors inside all of it, and commercial Earth-observation data services form an increasingly industrial supply chain — the same chips-plus-AI-plus-advanced-manufacturing pattern that runs through the rest of this page. India offers launch cost advantages and a growing satellite-manufacturing base; the US brings frontier propulsion, deep-space and commercial-launch capacity; the UK brings satellite design, Earth-observation data services and finance for space startups.

The accurate description of this is overlapping space-industrial supply chains between separate bilateral partnerships — not a trilateral lunar or space pact. No such formal three-country space framework exists as of August 2026.

Lithium, cobalt, nickel, rare earths, graphite and other semiconductor-adjacent materials sit upstream of EVs, AI hardware, defence systems and consumer electronics — and China dominates global processing capacity in most of them. The India-US Critical Minerals Framework (signed May 26, 2026, by EAM Jaishankar and Secretary of State Rubio) covers four supply-chain layers: mining/extraction, processing/refining, recycling/recovery, and financing/offtake agreements. It builds on groundwork from February 2026, when the US State Department launched the Forum on Resource Geostrategic Engagement (FORGE). Separately, the four Quad countries (US, India, Japan, Australia) announced a multilateral Critical Minerals Initiative targeting up to $20 billion in mobilised public and private capital for Indo-Pacific mining, processing and recycling projects.

Cross-border data rules now sit directly inside India’s economic relationships with the US and UK, because IT services, SaaS, cloud computing, fintech, AI training data, BPO and health-data processing all depend on personal data moving legally across borders.

India

India’s Digital Personal Data Protection Act, 2023 (DPDP Act) is in force, and the Digital Personal Data Protection Rules, 2025 were notified by the Ministry of Electronics and IT on November 14, 2025, operationalising most of the Act’s provisions on a phased timeline running through November 2026 and May 2027. The Data Protection Board of India was established by March 2026. Some provisions — including cross-border data-transfer restrictions and the designation of “Significant Data Fiduciaries” — remain pending separate government notification as of August 2026.

United Kingdom

The UK operates its own post-Brexit UK GDPR regime, distinct from the EU’s GDPR, with its own adequacy-decision process for third countries. India does not currently have a UK GDPR adequacy decision. Companies transferring personal data from the UK to India rely on Standard Contractual Clauses or Binding Corporate Rules rather than an adequacy-based mechanism. Separately, EU-level adequacy assessment timelines for India (a different, EU-specific process) are projected by outside analysts to run through 2027-2029 — a projection, not a confirmed decision, and not the same process as UK adequacy.

United States

The US has no single comprehensive federal privacy law; data governance is a mix of sectoral rules (health data under HIPAA, financial data under GLBA, etc.) and state-level laws, creating a more fragmented compliance picture for companies moving data between India, the UK and the US than either of the other two countries’ more unified frameworks.

The practical effect for businesses: digital trade between these three economies keeps growing, but it grows on top of three genuinely different, non-interoperable data-governance regimes — not a shared framework.

The US and UK offer very different mobility pathways for Indian technology talent, and both changed materially in 2025-2026.

United States: H-1B

The H-1B programme remains the primary US work-visa route for Indian technology professionals, subject to an annual statutory cap with cap-exempt categories (universities, some nonprofits and research organisations) and a lottery registration process. On September 19, 2025, a presidential proclamation introduced a $100,000 fee that employers must pay before filing new H-1B petitions for beneficiaries residing outside the United States — on top of existing filing fees. A separate DHS rule, finalised December 29, 2025 and effective February 27, 2026, restructured the lottery to weight entries toward higher wage levels rather than pure random selection. A further proposed rule would raise required prevailing wages by roughly 21-33%. The $100,000 fee has faced legal challenges; a December 2025 district court ruling went against the challengers, who have appealed. None of this amounts to an H-1B “ban” — the programme continues to operate, at higher cost and with a different selection mechanism than before.

United Kingdom: Young Professionals Scheme

The India Young Professionals Scheme is a reciprocal UK-India visa route, separate from the UK’s general Skilled Worker visa and from student visas, open to Indian (and British) citizens aged 18-30, permitting up to two years living and working in the other country. It is capped at 3,000 places per year, allocated by random ballot rather than by qualification, employer sponsorship or application timing, with places released across a February ballot and a second ballot later in the year. It does not provide the settlement or long-term work pathway that a Skilled Worker visa does, and it is not a substitute for CETA’s separate business-mobility provisions for services professionals.

India’s foreign policy continues to describe itself as pursuing strategic autonomy — deepening ties with the US and UK on technology and defence while maintaining its own relationships with Russia (including continued, if reduced, energy trade), the Gulf states, the EU, Japan, Australia and the wider Global South through platforms like the G20, BRICS and the Voice of Global South Summit. India’s continued Russian oil purchases were themselves a direct point of US tariff pressure in 2025–2026, illustrating that India’s US relationship has real friction points, not just convergence. The accurate framing is not “India joining a Western bloc” but India pursuing issue-based cooperation — going deep with the US and UK on AI, chips and defence technology specifically because those are areas where India needs partners, without adopting every element of US or UK foreign policy elsewhere.

A page built entirely around convergence would misrepresent the relationship. Documented areas of friction include: India’s continued Russian energy and defence-equipment purchases, which directly triggered the 2025 US tariff escalation; differing approaches to trade protectionism, with India defending agricultural and dairy-sector tariffs the US wants opened; three non-interoperable data-privacy regimes (DPDP Act, UK GDPR, US sectoral rules); different AI-regulation philosophies (India’s evolving sectoral approach, the US’s 2025 deregulation push, the UK’s security-focused pivot); different visa and mobility politics (rising US H-1B costs versus the UK’s small, ballot-based Young Professionals Scheme); and differing levels of confrontation with China, where the US applies broad tariffs and export controls, the UK takes a more case-by-case approach, and India manages an active border dispute alongside continued, growing bilateral trade.

China’s dominance of critical-mineral processing, its position as India’s largest single trading partner by value, and its role as the leading global semiconductor and telecom-equipment exporter shape the calculations of all three countries. But this is not simply an anti-China alignment: India continued to grow its own trade with China even through 2025–2026, and the US and UK have their own separate, sometimes divergent, China policies (on tariffs, on Huawei-equipment restrictions, on outbound investment screening). The more accurate description is that supply-chain diversification, reshoring and “trusted-partner” sourcing are shared goals that happen to reduce China-dependence as a side effect, not a coordinated trilateral containment strategy.

The pattern connecting these sections: China+1 diversification thinking (2020 onward) fed into India’s manufacturing push, which fed into US and UK capital and technology interest in India (semiconductors, AI infrastructure), which is now feeding into formal frameworks (TRUST, CETA, the Critical Minerals Framework) and defence industrial cooperation. This is best understood as an emerging trend, several years from completion — not an already-built alternative supply chain to China’s.

India-US is the deepest and fastest-moving of the three relationships in 2025-2026: a 10-year defence framework, TRUST/iCET on critical technology, a critical-minerals framework, and the AI Impact Summit’s outcomes. India-UK is the most operationally concrete: CETA is in force, not just signed, and the defence and autonomous-systems roadmaps are advancing on defined working-group timelines. US-UK is the oldest and, on paper, the deepest of the three — yet the only one to actually stall in this period, with the Technology Prosperity Deal partly suspended over tax policy.

Where these three tracks overlap — AI, semiconductors, space, defence technology, maritime security and digital trade — the overlap is real and growing. But it is the product of three governments independently pursuing compatible interests through separate agreements, not a shared trilateral architecture. The emerging structure is better understood as a network of overlapping bilateral partnerships than a new three-country treaty alliance — and the divergences documented above (Russia, trade protectionism, data regulation, AI philosophy, visa policy, China posture) are exactly why a single alliance framing would overstate what is actually happening.

2026–2027: Watch for the F414 commercial contract signing, further India-US BTA rounds, semiconductor fab construction milestones at Dholera, and whether the US-UK Technology Prosperity Deal is formally revived or allowed to lapse further.

2027–2028: Possible supply-chain localisation progress under the Critical Minerals Framework and Quad initiative; early output from India’s newer semiconductor fabs; further India-UK defence co-development announcements from the Autonomous Systems Working Group.

2028–2030: If current trajectories hold, expect deeper AI-infrastructure buildout, aerospace technology maturation (assuming F414 production proceeds), a more developed semiconductor ecosystem, and continued incremental growth in trade corridors — none of this is guaranteed, and each depends on domestic politics in all three countries.