Built in  the year 1964,  Pelling Sr. Sec. School used to be the only big school built in West Sikkim. Its premises stretches over  some acres. Besides the main  building  there are  boy’s hostel, girls hostel, teachers family quarters, football ground, volleyball ground, children park and school canteen. Within the school building there is a  well stocked library room, computer class room, physics laboratory, biology laboratory, chemistry laboratory and about 12 classrooms and a spacious auditorium. This  school has more than 40 teachers including principal and about ten  non teaching staff . There are about 450  boys and 350  girls altogether 800 enrolments. About 100 live in hostels and the remaining are day scholars. This has classes beginning from nursery to class XII. The medium of teaching is English. The streams at higher classes are Bioscience, Pure science, commerce and humanities. Where as there are optional non academic streams like tourism , painting and other vocational subjects. Including this school  all the govt. schools are under NCRT board with CBSE courses of which the board exams are at standard X and XII. School observes children's day , teachers day  and annual function towards the end of session. Besides there is always full participation of the school in annually celebrated India Independence day and Bhanujayanti .  This school always has been cooperative in providing all kind of possible help in any kind of social problems and activities. In sports, music, dances and other co curricular activities, the children of this school are ahead. Football,cricket and volley ball are there  main games.

Govt. provides free education to the lower class children with free books,  school bags, rain coats, school dresses and lunch during  lunch break. School has rich varieties of plants and trees, suitable for visitors to stroll around and meet the children during school hour.
Attention: kindly take permission from the principal if you want to meet the children or visit the classes. At present Mrs. Manju Subba is the principal.