Tasi Nam or (Tashi Gau actual name) is the largest village of Gauri Sankar (Rural municipality) at Dolakha District, Nepal, population of 700. Ethnic groups like, Sherpa, Magar, Gurung, Kami, Newar, Thakuri, Tamang inhabit this place. Tashi Nam is the main gateway to the Rolwaling valley and one of the gateways to Mount Everest. Tasi Nan is rich in Ophiocordyceps sinensis. Hydel power is produced in upper Tamakoshi and in the Siprin Khola.