India Set to Finalise Five Additional S-400 Deal with Russia Ahead of Putin’s Visit

India has initiated talks with Russia to expand its strategic defence capabilities, focusing on the procurement of additional S-400 air-defence systems following the successful deployment of the system in Operation Sindoor. Senior Defence Ministry officials are set to meet Russian counterparts to finalise a deal for five more units, with sources indicating that the agreement is expected to be concluded ahead of President Vladimir Putin’s visit to India in December.

This move builds upon the original $5.43 billion S-400 agreement signed on October 5, 2018, under which two out of five systems are scheduled for delivery by 2026. The additional five systems are intended to strengthen air-defence coverage along India’s extensive coastline and in sensitive northern regions. Reports suggest a mixed acquisition model, with three systems being purchased directly from Russia and two units potentially manufactured in India under technology transfer arrangements with private sector companies. The talks also include plans for MRO facilities to be developed domestically, enhancing long-term operational self-reliance. Officials have clarified that speculation about India acquiring the S-500 system is inaccurate at this stage.

During Operation Sindoor, the S-400 system played a crucial role in intercepting hostile drones and missiles, providing long-range protection for critical military installations and urban centres between May 7–8. Its performance highlighted India’s strengthened airspace control and enhanced deterrence capability, demonstrating the strategic value of expanding the fleet.

Alongside the S-400 discussions, there has been growing speculation and multiple reports suggesting that India may also explore acquiring Su-57 fifth-generation fighter aircraft from Russia. Analysts indicate that while no formal agreement has been signed, discussions could gain momentum during Putin’s December visit. An order for Su-57 jets would complement India’s efforts to modernise its air force fleet, pairing advanced stealth multirole fighters with long-range missile defence systems for a more integrated defence posture. Several reports suggest that the Indian side is evaluating both direct purchase and technology transfer options for local production.

The convergence of S-400 procurement and potential Su-57 acquisition reflects India’s broader strategy to enhance air defence and combat capabilities in the context of evolving regional security dynamics. The upcoming 23rd India-Russia Annual Summit, with Russian Foreign Minister Sergey Lavrov visiting ahead of President Putin, is expected to provide a platform to advance both discussions. By integrating direct procurement with domestic manufacturing collaboration, India aims to bolster indigenous defence capabilities while reinforcing its long-standing strategic partnership with Russia.