Answer: The origins of the river Ganga and Indus are in the Himalayas. Ganga flows from the Gangotri Glacier and Indus flows from Tibet, near Lake Mansarovar.
Ganga- Ganga is the largest river basin in India. The length of the river is over 2500 kilometres. It flows from the mountains of Haridwar. The Bhagirathi river fed by the Gangotri Glacier is met by Alaknanda at Devprayag in Uttarakhand.
Indus- It flows in the westward direction from Tibet and enters India through Ladakh. It continues flowing in the southward direction before it enters the Arabian Sea. Hunza, Shyok, Zaskar, and Nubra are the tributaries that join the Indus River.