The Vijayanta (en:"Victorious") main battle tank was built in India based on a licensed design of the Vickers Mk.1. The prototype was completed in 1963 and the tank entered service in 1965. The first 90 Vehicles were built by Vickers in the UK. Production continued at the Heavy Vehicles Factory in Avadi until 1983 with 2200 being built. A number of the tank hulls were converted to other uses such as self-propelled guns after being withdrawn from service. The Vijayanta has been supplanted by the T-72M1 in Indian service.One of the Tanks is presently kept at Colvin Taluqdars' College Lucknow