The 155 mm artillery gun project was started by India since there are delays associated with the procurement of artillery guns due to issues of corruption and irregularities. Many of the companies that bid for the contract are either blacklisted for utilizing unfair means to gain the contract leading to single vendor issues and guns not meeting the requirement of the Indian Army. The artillery guns were not procured after the Bofors scandal

Bofors scandal

The Bofors scandal was a major corruption scandal in India in the 1980s; the then Prime Minister Rajiv Gandhi and several others were accused of receiving kickbacks from Bofors AB for winning a bid to supply India's 155 mm field howitzer...

. Hence it was planned to replace the older guns with a modern indigenously developed 155mm artillery gun. DRDO along with private companies including L&T, Bharat forge are developing a 155 mm artillery gun, that is to be handed over to the Indian Army

Indian Army

The Indian Army is the land based branch and the largest component of the Indian Armed Forces. With about 1,100,000 soldiers in active service and about 1,150,000 reserve troops, the Indian Army is the world's largest standing volunteer army...

for trials in 2013.