NEW DELHI, — April 2, 2026 : The Ministry of Defence (MoD) has initiated a major procurement process for more than 200 New Generation Air Defence Gun (ADG-NG) systems for the Indian Army, issuing a Request for Information (RFI) to industry. Vendors have been asked to submit technical and product responses by June 11, 2026, marking the early stage of a program aimed at strengthening India’s short-range air defence capabilities.
The planned acquisition forms a core component of Mission Sudarshan Chakra, a long-term initiative designed to establish an artificial intelligence-enabled, multi-layered national air and missile defence architecture by 2035. The program integrates sensors, command-and-control networks, and weapon systems across the Army, Air Force, and Navy, with gun-based systems forming a key layer for close-in protection.
Operational Background and Threat Assessment
The requirement for ADG-NG systems is based on operational lessons drawn from Operation Sindoor conducted in May 2025. During that period, adversaries deployed electrically powered drone swarms along India’s western front for surveillance and precision targeting of civilian and military infrastructure.
These drones, including commercial and improvised platforms, presented detection challenges due to their low radar cross-section and minimal infrared signatures. The experience highlighted limitations in existing air defence systems, particularly against low-cost, small, and slow-moving aerial threats.
In response, the ADG-NG systems are required to detect, recognise, identify, track, and engage a wide spectrum of aerial targets. These include conventional threats such as fixed-wing aircraft, helicopters, and cruise missiles, as well as unconventional platforms like micro and mini unmanned aerial systems, para-motors, paragliders, and micro-light aircraft. The systems are also expected to handle high-performance targets, including fighter aircraft such as the Dassault Rafale, alongside small commercial drones like the DJI Mavic Pro 3.
Technical Specifications and System Requirements
According to the RFI, the ADG-NG will be a vehicle-mounted or towed platform equipped with advanced automation and fire control technologies. Key operational and technical parameters include:
The system must achieve a minimum firing range of 4,000 metres and an engagement altitude of at least 2,500 metres. It is required to sustain a rate of fire exceeding 300 rounds per minute and engage targets travelling at speeds up to 500 metres per second.
The guns will use programmable smart ammunition, including pre-fragmented and proximity-fused rounds, along with conventional high-explosive tracer ammunition. All ammunition must incorporate a self-destruct mechanism to minimise collateral damage and maintain a minimum shelf life of 10 years.
Each system will be fitted with an integrated Electro-Optical Fire Control System (EOFCS) capable of autonomous, all-weather, day-and-night operation. This includes target acquisition, tracking, and engagement without continuous operator input.
Operational requirements specify the inclusion of an autoloader system manageable by no more than two personnel. The platforms must also support silent operations through onboard power solutions such as generators, batteries, or external mains supply to reduce acoustic detection.
Industrial Participation and Competing Systems
Three Indian defence manufacturers are expected to participate in the ADG-NG program based on their existing capabilities and involvement in similar projects.
Larsen & Toubro (L&T) is offering its Sudarshan Close-in Weapon System (CIWS), which incorporates a 3D Active Electronically Scanned Array (AESA) radar and is designed for autonomous tracking and engagement, including high-altitude operations.
Bharat Heavy Electricals Limited (BHEL), in partnership with Italy-based Leonardo S.p.A., is proposing a system focused on high fire density. This configuration is intended for point defence roles, particularly for protecting critical infrastructure and high-value assets. The partnership builds on ongoing collaboration between the two companies in gun and fire control system development.
Advanced Weapons and Equipment India Limited (AWEIL), headquartered in Kanpur, is presenting an upgraded version of the legacy Bofors L-70 air defence gun. The proposed system incorporates modern electronics, digital fire control systems, and improved radar integration.
Indigenous Content and Procurement Framework
The MoD has stipulated that the ADG-NG systems must achieve a minimum of 50 percent indigenous content based on cost. This requirement aligns with the government’s Atmanirbhar Bharat policy, which prioritises domestic manufacturing, technology transfer, and local supply chain development in defence procurement.
The systems are expected to feature modular architecture to ensure compatibility with existing Indian Army radar, communication, and navigation systems. The program also emphasises scalability and future upgrades as part of the broader integrated air defence framework.
Modernisation Context and Previous Efforts
The ADG-NG program is part of ongoing efforts to replace legacy air defence guns currently in service, including the ZU-23-2 twin-barrel autocannons and mechanically operated L-70 systems. These older platforms have limited capability against emerging threats such as drone swarms and precision-guided munitions.
The current RFI builds on earlier procurement initiatives. In October 2022, the MoD issued a Request for Proposal (RFP) for 220 towed air defence guns under the Buy and Make (Indian) category, also requiring 50 percent indigenous content. The ADG-NG program represents a shift toward more advanced, vehicle-mounted systems with higher levels of automation and integration.
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