The four South Asian countries that include territory in the Himalayan Mountain Range are:
India; the territory that includes the Himalayas is in the northernmost part of the country.
Pakistan; the territory that includes the Himalayas is in the northeastern part of the country.
Nepal; the country is lying on the Himalayas, and in here it is the highest peak of all, Mount Everest.
Bhutan; this small landlocked country, like Nepal, is totally lying on the Himalayas.