Dhanush is a 155mm towed howitzer developed and manufactured in India, drawing on the design lineage of the Swedish Bofors FH-77B gun acquired in the 1980s. Often described as the first indigenously built 155mm artillery gun of its class in the country, Dhanush represents an effort to convert transferred technology and decades of operating experience into a domestically produced weapon. It forms part of the modern spectrum of Indian artillery systems now entering service with the Indian Army.

The gun's origins lie in the transfer of documentation and know-how associated with the earlier Bofors FH-77B purchase. Indian engineers used this foundation to design an upgraded weapon with a longer barrel and modern sub-systems, and the gun was produced by the country's state-owned ordnance manufacturing establishment. This made Dhanush a milestone in re-establishing a domestic capability to build heavy artillery after a long period in which little new tube artillery was inducted. The programme also proved that the technical documentation acquired decades earlier could still yield a modern, buildable design.

Design and features

Dhanush is a 155mm/45-calibre towed howitzer, offering greater range than the original 155mm/39-calibre gun from which it is derived. It incorporates an electronic fire-control and laying system, an improved recoil mechanism and provisions for both indigenous and standard NATO-pattern 155mm ammunition. As a towed gun, it is transported by a suitable prime mover and deployed by its crew, offering a lower unit cost and lighter footprint than tracked self-propelled systems. This makes it economical to field in numbers across the plains and semi-desert sectors where towed guns remain the mainstay of divisional artillery.

The howitzer's electronic systems allow for faster and more accurate laying compared with older manually operated guns, and its longer barrel provides extended reach with modern projectiles and charges. Precise range figures depend on the ammunition and charge combination used, but the 155mm/45 configuration places Dhanush firmly within the contemporary standard for towed artillery. Features such as an auxiliary power unit, self-diagnostics and a modern sighting system reflect the intent to field a gun that is both accurate and easier to operate and maintain than the equipment it supplements.

Production and significance

Dhanush is significant less for any single technical feature than for what it represents: a demonstration that India can manufacture a modern heavy gun domestically. The programme drew on the wider ecosystem of defence manufacturing in India, including public-sector ordnance production and private-sector component suppliers. Development was not without challenges. Like many complex weapon programmes, Dhanush encountered trial setbacks that required design refinement before the gun was cleared for series production and induction. Such iterative testing is a normal part of qualifying artillery, where barrel life, accuracy and reliability under sustained firing must all be validated across a wide range of temperatures and terrain, and overcoming these hurdles was itself a valuable learning process for the domestic industrial base.

Within the Regiment of Artillery, Dhanush provides a domestically produced towed 155mm capability that complements imported and licence-built systems. Its standardisation on the 155mm calibre also positions it to benefit from ongoing work on guided and extended-range rounds, which are intended to be compatible across the Army's family of 155mm guns. In the broader narrative of India's artillery modernisation, Dhanush occupies an important symbolic and practical role. It closed a long gap during which the Army inducted little new tube artillery, and it proved that the lessons of the Bofors era could be transformed into indigenous industrial capability. As the fleet grows and is paired with newer guns and munitions, Dhanush stands as a bridge between the legacy of the 1980s import and the self-reliant artillery force the Army seeks to build, giving planners confidence that future guns can be designed and produced at home.