The Aviation Research Centre (ARC) is India's imagery intelligence organisation, a part of the Directorate General of Security, run by the Research and Analysis Wing (R&AW). It started functioning in November 1962, in the wake of the Sino-Indian War, as an extension of the Intelligence Bureau, but placed under the Ministry of External Affairs.

The Special Frontier Force (SFF) is an Indian special forces unit composed primarily of Tibetan refugees and Gurkhas in India. It was established after the Sino-Indian War of 1962 to primarily conduct covert operations behind the Chinese lines in case of another war with China. Later it increased in size and scope of operations.