(1) Dev Prayag Explanation: It is at Dev Prayag in Tehri Garhwal district of Uttarakhand that Alaknanda and Bhagirathi rivers meet and take the name Ganga or Ganges River. It is one of the Panch Prayag (five confiuences) of Alaknanda River. The Alaknanda rises at the feet of the Satopanth and Bhagirath Kharak glaciers in Uttarakhand. The headwaters of the Bhagirathi are formed at Gaumukh, at the foot of the Gangotri glacier and Khatling glaciers in the Garhwal Himalaya.