In a significant step towards reducing foreign dependence in aerial armaments, the Armament Research and Development Establishment (ARDE) under the Defence Research and Development Organisation (DRDO) has shortlisted SSS Defence and the Kalyani Group as Development-cum-Production Partners (DcPP) to design and develop an indigenous 20mm aviation gun and turret system. The weapon is intended for integration on Hindustan Aeronautics Limited’s (HAL) Rudra (ALH Mk-IV) and Prachand (Light Combat Helicopter) platforms.
Keywords: Indigenous 20mm aviation gun, DRDO ARDE, Rudra Prachand helicopters, SSS Defence Kalyani Group, Atmanirbhar defence manufacturing
Currently, both attack helicopters rely on the imported THL-20 turret housing the 20mm M621 cannon supplied by European firm KNDS (formerly Nexter). The new programme marks India’s first full design and development effort for a medium-calibre aviation gun, moving beyond licensed production or assembly. An MoU between ARDE and HAL had earlier laid the foundation for indigenising aviation weapons. Following a competitive process, the two private companies were selected. Development is expected to take approximately two years. Upon successful trials and acceptance, production orders will be split 60:40 between the L1 and L2 bidders to ensure competition and supply-chain resilience.
The project underscores growing confidence in India’s private defence sector. Medium-calibre aircraft guns demand high reliability under severe vibration, tight tolerances and seamless integration with fire-control systems. Success here will not only equip the existing Rudra and Prachand fleets with a fully indigenous primary gun but also create design and manufacturing expertise that can spin off into future rotary-wing and fixed-wing programmes.
While some online commentary has contrasted the 20mm calibre with the 30mm chin-mounted guns on platforms such as the Chinese Z-10ME, Indian planners have prioritised a system optimised for the weight, recoil and performance envelope of the indigenous helicopters already in service. The focus remains on achieving operational self-reliance rather than matching specific foreign calibres.
Once mature, the indigenous 20mm gun is expected to strengthen India’s attack helicopter capability, reduce long-term sustainment costs and reinforce the broader Atmanirbhar Bharat push in critical aerospace armaments.
contact: drrajeshjauhri@gmail.com
Dr Rajesh Jauhri is a Journalist with an experience of over 25 years in Indian and foreign media, a Social Scientist, an Ac-complished Author, a Political & Strategic Analyst, a Marksman (Rifle & Pistol), an Orator, a Thinker and an Educationist. He holds a Ph.D. degree on “Impact of colonial heritage on Indian police”. He runs an NGO dedicated to the social and eco-nomic uplift of tribal communities in MP and two decades back, he established a school in a village of Indore district, providing education and moral values to children belonging to underprivileged and minority families. Has received multiple awards in various fields.
