Answer : 2. "पनडुब्बी रोधी युद्धपोत"
Explanation :

Solution: Three ships being built for the Indian Navy, Mahe, Malvan and Mangrol, were launched on 30 November. The ships were launched with invocations of the Atharvaveda. This ship is 78 meters long and can reach a maximum speed of 25 knots. Their displacement is approximately 900 tons. The contract was signed in 2019 between the Ministry of Defense and Cochin Shipyard Limited for the construction of eight ASW SWC ships. The Mahe class ships will be equipped with indigenously developed, state-of-the-art underwater sensors, and anti-water sensors.