The Indian government is moving to significantly bolster its national airspace security by initiating a proposal to acquire five more squadrons of the S-400 Sudarshan long-range surface-to-air missile system from Russia.
This strategic expansion follows the reported high-level performance of the platform during "Operation Sindoor" last year.
According to reports from ANI, the Ministry of Defence is expected to review the procurement plan shortly as part of a comprehensive strategy to strengthen India’s multi-tiered aerial defence network across its various border regions.
Known domestically as the "Sudarshan" and internationally as the S-400 Triumf, this Russian-engineered technology is regarded as one of the most sophisticated long-range interception tools in the world.
It is built to identify, monitor, and eliminate a diverse array of airborne threats, ranging from modern fighter jets and unmanned aerial vehicles (UAVs) to cruise missiles and specific ballistic targets at high altitudes and long distances.
The system utilizes a versatile suite of interceptor missiles and high-performance phased-array radars, allowing it to manage numerous targets simultaneously and protect against "saturation attacks" where an adversary attempts to overwhelm a location with many projectiles at once.
India’s initial engagement with this technology began with a $5.5 billion agreement signed in 2018 for five original squadrons.
To date, three of these units have been integrated into the Indian Air Force (IAF) and are currently on active duty, while the final two units of the first batch are scheduled for delivery through 2026 and 2027.
The new proposal aims to double the eventual fleet from five to ten squadrons. Preliminary dialogues with Russian officials are reportedly underway, and a formal tender for these additional units is anticipated soon.
Alongside the hardware, the IAF is also prioritizing the acquisition of a substantial stockpile of interceptor missiles to maintain long-term combat readiness.
The intended deployment of these new units will cover both the Eastern and Western fronts, addressing India’s complex security landscape involving the Line of Actual Control with China and the border with Pakistan.
The decision to expand the fleet is heavily influenced by the system’s performance during the 2025 conflict known as Operation Sindoor.
During this engagement, the S-400 Sudarshan reportedly achieved the longest-range aerial interceptions in recorded military history, neutralizing several hostile fighter jets and a high-value surveillance aircraft at distances exceeding 300 km.
Open-source assessments suggest the system successfully downed five to six enemy combatants, outperforming regional alternatives like the Chinese-origin HQ-9 system.
By doubling its S-400 inventory, India seeks to establish a nearly impenetrable electronic and kinetic shield, ensuring a highly responsive and integrated national defence posture.
