Indus and Ganga both of them have their origin in the Himalayas, the river Indus rises near the Mansarovar Lake in Tibet and the Ganga originates at the Gangotri glacier in the Himalayas. The Indus flows through Baltistan and Gilgit and emerges from the mountains at Attock and the headwaters the Ganga, called Bhagirathi is fed by the Gangotri Glacier and joined by the Alaknanda at Devaprayag in Uttarakhand.