Two types of indigenously built high-power multi-fuel engines V-46-6 and V92S2 were handed over to Indian Army for first time under Make in India. These engines were manufactured by Engine Factory Avadi (EFA), a unit of Ordnance Factory Board (OFB).
These engines are based on Russian design. V92S2 is high power diesel engine with 1000 HP capacity and it is fitted in T-90 Battle Tank (Bhisma Tank). V46-6 is also high power diesel engines with 780 HP and it is fitted in T-72 Main Battle Tank (Ajeya Tank). They are manufactured with 100% Made in India parts.
The indigenisation of two of three types of tanks used by Indian Army has made it battle-ready. It has resulted in savings for exchequer for each engine cost to tune of Rs. 33 lakh for T-90 engine and Rs. 9.75 lakh for T-72 engine. It also exhibits self-reliance of OFB in manufacturing these engines in India without any import support.