Ganga is the longest river in India. The Ganga originates as the Bhagirathi from the Gangotri glacier. Before it reaches Devprayag in the Garhwal Division, the Mandakini, Pindar, the Dhauliganga and the Bishenganga rivers merge into the Alaknanda and the Bheling drain into the Bhagirathi. The Pindar River rises from East Trishul and Nanda Devi unite with the Alaknanda at Karan Prayag. The Mandakini meets at Rudraprayag. The water from both Bhagirathi and the Alaknanda flows in the name of the Ganga at Devprayag.