On which river is the Peacock Island located?

Brahmaputra

The correct answer is Option (3) → Brahmaputra

Peacock Island, also known as Umananda Island, is a small river island located on the Brahmaputra River in Assam, India. It is known for its natural beauty, wildlife, and the presence of the Umananda Temple dedicated to Lord Shiva. The island is a popular tourist destination and can be reached by ferry from Guwahati, the largest city in Assam.