List of Important Rivers of India and their Names, Origin, Destination and Length S.N. Name of Rivers Source or Origin of River End of River/River Joined Length (KM) 1 Ganga Gangotri Glacier (Bhagirathi), Uttarakhand Bay of Bengal 2525 2 Indus Originates in Tibetan plateau china, Enters India in J & K Merges into Arabina sea