Answer : 1. "त्रिशूल"
Explanation :

Trishul is the name of a short range surface to air missile developed by India as a part of the Integrated Guided Missile Development Programme. It has a range of 9 km and is fitted with a 5.5 kg warhead. Trishul flies in supersonic speed and has a low altitude sensitive radio altimeter and height lock loop control on board, to skim over the sea at a very low altitude and hit against sea skimming missiles coming towards our ships.