On which river is India's smallest river island Umananda situated?ABrahmaputra RiverBSaraswati RiverCGanga RiverDYamuna RiverAnswer: A. Brahmaputra River Read Explanation: India's smallest river island, Umananda, also known as Peacock Island, is situated in the middle of the Brahmaputra River near Guwahati, Assam.The island is famous for the Umananda Temple, dedicated to Lord Shiva, and is a popular pilgrimage and tourist site. The British named it Peacock Island due to its shape, which they thought resembled a peacock's splayed feathers. Read more in App