This body of water is named for the subcontinent that lies on the continent to the north.

Indian ocean

Explanation:

Indian ocean is the water body which named after the subcontinent lies in north to it. Indian subcontinent includes: - India, Pakistan, Bhutan, Bangladesh, Nepal and Afghanistan, Maldives, Sri Lanka. Once the continent was the piece of Gondwanaland and now termed as Indian subcontinent. The ocean southern to Indian subcontinent is named as Indian ocean because of this subcontinent.

Indian ocean