Moscow is once again courting New Delhi with its Su-57 stealth fighter, dangling technology transfer and local assembly as sweeteners. The offer lands at a moment when India's own fifth-generation ambitions are taking shape through the Advanced Medium Combat Aircraft programme, and when memories of a previous collapsed partnership still shadow any renewed talk of cooperation.
A partnership that ended in walkout
India and Russia once worked together on a fifth-generation fighter under the Fifth Generation Fighter Aircraft programme, a joint effort meant to give the Indian Air Force a stealth platform derived from Russian design work. India withdrew in 2018. The reasons cited at the time centred on unresolved doubts about the aircraft's stealth characteristics, concerns about engine performance, and the overall cost of staying in the programme. That exit was not a minor procedural step. It represented years of investment and expectation being set aside, and it left a residue of caution in how Indian defence planners now evaluate any renewed Russian offer involving the same aircraft lineage.
Unresolved questions around production and performance
Since India's departure, the Su-57 has continued its development path inside Russia, but it has not shaken off scrutiny. Questions persist about how many airframes have actually been built and delivered, how the programme has scaled relative to early projections, and how the aircraft has performed in actual combat conditions. For a buyer the size of India, these are not abstract concerns. An air force considering a major acquisition needs confidence in supply chains, maintenance support, and a track record that can be independently verified. Ambiguity on production numbers or operational performance makes it harder for any government to justify a large, long-term commitment, particularly one involving sensitive technology sharing and domestic manufacturing.
The AMCA factor
Russia frames the Su-57 as a practical interim solution, a way to fill a capability gap while India's homegrown AMCA moves through design and testing. That pitch has logic behind it: indigenous fighter programmes typically take many years to move from design to operational squadrons, and gaps in capability are a real concern for air forces. But India's posture suggests a different calculation. Rather than lean on an imported stealth platform, Indian defence planning has leaned toward building domestic capability, even if that means accepting a longer runway before a fifth-generation jet enters service. This reflects a broader strategic preference running through India's defence procurement in recent years, one that favours technology ownership and local industrial development over dependence on a single foreign supplier.
Why Moscow keeps returning with the same offer
For Russia, India remains one of the few remaining large markets open to deep defence cooperation, especially as Western sanctions and diplomatic isolation have narrowed its options elsewhere. A sale of this scale, paired with technology transfer and local production, would carry both commercial and geopolitical weight for Moscow. For India, though, the calculus involves weighing an uncertain aircraft programme against the slower but more controllable path of indigenous development. That is the core of the standoff: an offer that makes sense for the seller does not automatically make sense for the buyer, particularly when trust, verified performance, and strategic autonomy are all part of the decision.