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. It was formally created on 7 September 1963, with R. N. Kao as Director and Acting Group Captain Lal Singh Grewal (later, Vice Chief of Indian Air Force) as Operations Manager at Charbatia air base (code named Oak Tree 1). It was later moved to the Prime Minister's Secretariat, and in February 1965, along with Special Frontier Force and Special Service Bureau (now Sashastra Seema Bal), was brought under the Directorate General of Security in the Cabi