What is "thapa"

Thapa is the surname of a large social group of people, both Mongolian Magar or and Aryan Chhetri. The Thapa Magars (Mongolian Origin i.e. Tibetan-Nepal Origin) come from the upper part of Nepal. The Thapa Chhetris are of Indo-Aryan thought to have originated from Karnaliregion. The Thapas are among the oldest ethnic people in Nepal. Their ancestral homeland in Nepal extends from southern edges of the Himalayas to the Mahabharat foothills in the south and Karnali river basin to Gandaki river basin in the east.

According to 2011 Nepal census, they are the largest indigenous group in Nepal, constituting 7.13% of Nepal's population, which places them as largest family name in Nepal.