evidence: Pulam Sumda is a small hilly village which lies in Uttarkashi District, Uttarakhand, India. Pulam Sumda is a part of Uttarkashi District, Uttarakhand, India, and claimed by Zanda County, Ngari Prefecture, Tibet, China. Jadh Ganga, an important tributary of the Bhagirathi River, flows through this place. Some of the nearby villages are Jadhang (Sang) and Nelang, which all lie in the valley of the Jadh Ganga.