India has received the fourth squadron of the Russian-made S-400 ‘Sudarshan’ air defence missile system, marking a significant boost to its strategic air defence capabilities. According to defence sources, the first consignment of this advanced system arrived via sea route and will soon be deployed in a designated operational area, likely along the western front bordering Pakistan. The S-400 system, known for its long-range surveillance and interception capability of up to 600 km, is expected to significantly strengthen India’s ability to detect and neutralize aerial threats.
The system is also equipped with artificial intelligence-based decision-support features, which assist operators in identifying and prioritizing targets, although the final launch decision remains with human operators. India had signed a $5.43 billion agreement with Russia in 2018 for five S-400 squadrons. Three squadrons have already been deployed across key strategic sectors including Punjab-Jammu, Rajasthan-Gujarat, and the Sikkim region, creating a multi-layered air defence shield across sensitive borders. Deliveries of the remaining units had been delayed due to the Russia-Ukraine conflict but have now resumed, with the fifth squadron expected by the end of the year.
The S-400 system has already been credited with operational success during “Operation Sindoor,” where it reportedly intercepted a Pakistani surveillance aircraft at a record range, demonstrating its advanced strike capability. Meanwhile, India is also working on indigenous air defence initiatives like “Project Kush,” aimed at reducing dependence on foreign systems and developing long-range interception capabilities domestically. With the integration of S-400 alongside systems like Akash and MRSAM, India is building a multi-layered air defence network designed to provide comprehensive protection against aircraft, drones, and missile threats.
