India and Russia are set to discuss a broad range of defence and strategic cooperation issues when Prime Minister Narendra Modi meets Russian President Vladimir Putin during the BRICS Summit in New Delhi on September 11.

The proposed sale of Russia's fifth-generation Su-57 fighter aircraft is expected to be among the major defence issues under discussion. Moscow has indicated that the Su-57 and related technology cooperation are significant items on Putin's agenda, although there is no confirmed agreement for India to purchase 75 aircraft worth ₹1 lakh crore at this stage.

Su-57 deal remains under discussion

The Su-57 is Russia's fifth-generation stealth fighter and is being positioned by Moscow as an advanced combat aircraft option for India.

Recent reporting indicates that Russia is seeking deeper cooperation with India on the aircraft, including possible technology sharing. For New Delhi, access to advanced fighter technology could become an important component of future aerospace cooperation.

However, the exact number of aircraft, contract value and terms of technology transfer remain subject to negotiations.

Su-30MKI capability upgrade

The discussions are also expected to cover the modernisation of India's existing Russian-origin fighter fleet.

One area of interest is strengthening the long-range strike capability of the Su-30MKI fleet through advanced air-to-air missiles and other upgrades. Reports have linked discussions to Russia's R-37M long-range air-to-air missile.

Such weapons are designed for engaging high-value targets at long distances, although specific Indian procurement details should not be treated as final unless officially announced.

S-400 cooperation continues

India and Russia are also expected to review air-defence cooperation, including the S-400 missile system.

India had signed a $5.43-billion contract with Russia for five S-400 systems. The system has become an important component of India's layered air-defence architecture.

Future discussions could involve additional air-defence requirements and technology cooperation, but any fresh acquisition would require formal approval and contracting.

Nuclear and strategic cooperation

Beyond fighter aircraft and missiles, India and Russia are also discussing cooperation in the nuclear-energy sector.

Recent reporting ahead of the Modi-Putin meeting said India has sought greater Russian participation in new nuclear power projects and broader technology cooperation.

The two countries have maintained extensive defence, energy and strategic ties for decades, making the September 11 meeting important beyond any single weapons programme.

Modi-Putin meeting on September 11

Putin is scheduled to visit India for the 18th BRICS Summit, which will be held in New Delhi on September 12 and 13. His bilateral meeting with Modi is expected on September 11.

Trade, energy, defence, payments, technology and international conflicts are expected to form part of the broader India-Russia discussions.

The talks will therefore be watched closely for any announcement concerning the Su-57, but a reported proposal should not be confused with a signed procurement contract.