Answer : 2. "हिंद महासागर"
Explanation :

India has recently applied to the International Seabed Authority (ISBA) for the right to explore the Afanasy Nikitin Seamount (AN Seamount) in the Indian Ocean. The AN seamount, 400 km long and 150 km wide, is rich in cobalt, nickel, manganese and copper. It is 3,000 km away from the coast of India and is 1200 meters above sea level. Seamounts, formed through volcanic activity near mid-ocean ridges, are hotspots for marine life, with the potential for active resource extraction.