National Institute of Mountaineering & Adventure Sports at Dirang in Arunachal Pradesh operates under the control and superintendence of ministry of defense, Government of India. The institute started functioning with effect from 30th may 2013.

It offers training across land, air and water – a first of its kind that allows civilians to experience challenges across a variety of outdoor surfaces as well as pursue a career in adventure sports- every training programme at NIMAS to draw upon the ideas of self- exploration and individual evolution.