HAL managed to get the order in the face of competition from Israel firm Elbit, European giant Eurocopter and one of the biggest helicopter manufacturers of the world, the Russian Kazan.
HAL's offer of $50.7 million for 7 helicopters was about 32 per cent lower than the second lowest bid from Israel.
The first helicopter will be delivered by HAL in six months . The contract for the supply of helicopters is likely to be signed within a few weeks.
This contract, which will establish HAL internationally, has been significant and hard fought.
HAL has already supplied 76 helicopters to the defence services with excellent serviceability records.
The company is presently executing orders for 159 more helicopters for Army and Air Force.