India Confirms Delivery Seventh And Eighth Battalions of Russian S-400 Air Defences

The delivery of S-400 long range air defence systems to equip the seventh and eighth Indian Air Force battalions has been confirmed on May 7 to have begun, as the Indian Defence Ministry and local media mark a year since the country’s brief but high intensity border conflict with Pakistan. Confirming the dispatch of the systems from Russia, Deputy Chief of Air Staff Air Marshal Awadhesh Kumar Bharti observed: “we should be having [it] with us within a month.” He added that systems on order to equip two further battalions are due for delivery by the end of 2026. The May 2025 Indian-Pakistani conflict marked the S-400’s first high intensity combat test outside Russia, with its performance that month receiving considerable praise from Indian military and civilian officials. 

In June 2025 Russian and Indian defence ministers Radjnath Singh and Andrey Belousov held discussions on accelerating the delivery of S-400 systems, after these had been delayed repeatedly due to complications resulting from the Russian-Ukrainian War. The Indian Air Force was previously scheduled to receive its last of ten battalions’ worth of S-400 systems in 2025, completing a $5.43 billion dollar order placed in October 2018. The S-400 is one of two high aerial warfare assets procured by the Indian Air Force over the past decade, alongside French Rafale fighters, with the perceived serious underperformance of the Rafale, and its losses in combat with Pakistani forces, having increased the perceived importance of the S-400.

The Indian Air Force is reportedly planning to deploy its next two S-400 battalions near the border with Pakistan, for a total of six battalions in the region, after which the last two of ten ordered battalions will reportedly be deployed near the border with China, brining numbers facing Chinese forces to four. The Indian Defence Ministry Defence Procurement Council in March 2026 approved the purchase of an additional ten battalions, bringing the total planned arsenal to 20 battalions, which may be intended to provide additional layers of defence further inland. The procurement of a navalised variant of the system to equip a future destroyer class is reported by a number of local sources to also be under consideration. The S-400 is particularly high prized for its very long engagement range, very high levels of situational awareness using multiple types of complementary radars, and its outstandingly low lifetime costs when compared to a comparable defensive capability provided by fighter aircraft.

The deliveries of new S-400 battalions is occurring as the Indian Defence Ministry is reported to have ordered Russian R-37M long range air-to-air missiles to significantly improve the performances of its Su-30MKI fighters, and as negotiations have also reached advanced stages to significantly enhanced the capabilities of the Su-30MKI fleet with extensive Russian upgrades. Russian government sources’ confirmation that new clients have signed contracts to procure the Su-57 fifth generation fighter have fuelled speculation that a contract for the sale to India may have already been signed, after the Indian Defence Ministry in January 2026 confirmed that talks for procurements had reached an advanced technical stage. These assets are all highly complementary, with the S-400s expected to form the crux of an increasingly sophisticated network of predominantly Russian aerial warfare systems protecting Indian airspace.