
Perched
on the Southern slopes of the Himalayan Mountains, the Kingdom of Nepal
is ethnically diverse. The Nepalese are descendants of three major
migrations. These migrations have taken place from India, Tibet, and
Central Asia. Among the earliest inhabitants were the Newar of the
Kathmandu Valley and aboriginal Tharu in the southern Tarai region. The
ancestors of the Brahman and Chetri caste groups came from India, while
other ethnic groups trace their origins to Central Asia and Tibet,
including the Gurung and Magar in the west, Rai and Limbu in the east,
and Sherpa and Bhotia in the north.
In the Tarai, which is a part of the Ganges basin, much of the
population is physically and culturally similar to the Indo-Aryan people
of northern India. People of Indo-Aryan and Mongoloid stock live in the
hill region. The mountainous highlands are sparsely populated. Kathmandu
Valley, in the middle hill region, constitutes a small fraction of the
nation's area but is the most densely populated, with almost 5% of the
population.
Nepal's 2001 census enumerated 103 distinct caste/ethnic groups
including an "unidentified group". The caste system of Nepal
is rooted in the Hindu religion while the ethnic system is rooted in
mutually exclusive origin myths, historical mutual seclusion and the
occasional state intervention.