Mussoorie International School is located at Sri Nagar Estate,
Mussoorie town,
Uttaranchal. It is affiliated to Council for the Indian School Certificate Examinations,
New Delhi. Courses are offered up to the higher secondary (XII) level. Students are given training for various examinations including GCSE, Grade X, and Grade XII.
Extra-curricular activities include wood-carving, macramé making, fabric painting, batik, soft toy making, first aid, cookery, roller skating, ballet, drama, debating, and yoga training. The campus houses a well-equipped health center providing regular check-ups. Hostel facility is also arranged.