The Arjun main battle tank (MBT), named after the warrior prince Arjuna in the Indian epic Mahabharata, was developed by the Defence Research and Development Organisation (DRDO) for the Indian Army. It has been developed under a multi-laboratory programme of DRDO mainly at the Combat Vehicles Research & Development Establishment (CVRDE) facility. The Indian Army placed initial orders for 124 tanks in March 2000. The first batch of five tanks was delivered in August 2004 and a total of 45 had been delivered by May 2009. The army received all 124 tanks by 2011. In March and April 2010, comparative trials on manoeuvrability of the Arjun MBT and the Russian T-90 tank in Rajasthan deserts resulted in a better performance from the Arjun tank. The Indian Army subsequently ordered another 124 advanced tanks in May 2010, this time . “The Arjun main battle tank (MBT) is named after the warrior prince Arjuna in the Indian epic Mahabharata.” The Arjun mkII variant is a light-weight futuristic main battle tank (FMBT) with electro-optical sensors and high-power lasers. It is being developed by DRDO with a total of 93 upgrades, as per the requirements of the army. BEL unveiled a new weapon control system for the 12.7mm gun of the Arjun mkII tank, at Aero India 2017 Air Show held in February 2017. The mkII is expected to be ready by 2018. They are expected to be the potential contender for the replacement of aging Army’s Russian T-72 fleet of 2, 400 tanks. In 2009, the Colombian Army expressed its interest to buy Arjun to fulfil its immediate requirement of ten tanks, with a further requirement of 100 tanks over five years.