India has a number of intelligence agencies, of which the best known are the Research and Analysis Wing, India’s external intelligence agency, and the Intelligence Bureau, the domestic intelligence agency, responsible for counter-intelligence, counter-terrorism and overall internal security. National Technical Research Organisation The National Technical Research Organisation (NTRO) is a technical intelligence agency under the National Security Advisor in the Prime Minister's Office, India. It was set up in 2004. It also includes National Institute of Cryptology Research and Development (NICRD), which is first of its kind in Asia. Research and Analysis Wing Research and Analysis Wing (R&AW) is the primary foreign intelligence agency of India. Aviation Research Centre The Aviation Research Centre (ARC) is a part of the Research and Analysis Wing (R&AW) of the Cabinet Secretariat (Special Requirements) India. The first head of the ARC was R. N. Kao, the founding chief of R&AW. Over the years the ARC has grown into a large operation and flies a large and varied fleet. Aerial surveillance, SIGINT operations, photo reconnaissance flights (PHOTINT), monitoring of borders, imagery intelligence (IMINT) are the main functions of the Aviation Research Centre (ARC). The aircraft are fitted with state-of-the-art electronic surveillance equipment and long range cameras capable of taking pictures of targets from very high altitudes. ARC also takes the responsibility along with the IAF to transport Special Frontier Force (SFF) commandos from their trans-location at Sarsawa, 250 km north of New Delhi, though the SFF's own base is in Chakrata in Uttarakhand (UK) state. Radio Research Centre The Radio Research Centre (RRC) is a part of the Research and Analysis Wing (R&AW) of the Cabinet Secretariat (Special Requirements) India. The radio research centre (RRC) is a premier communication and signal intelligence agency of India. RRC’s tasks include – communication with the embassies abroad, send cyphered code to agents stationed abroad, interception fixed line and wireless communication and the department closely works with the Joint Cypher Bureau. The RRC has offices all across the country and the perform the intercepts communication and sends code. Electronics and Technical Services The Electronics and Technical Services (ETS) is the Electronic Intelligence (ELINT) arm of India's external intelligence agency Research and Analysis Wing (R&AW). Established in the mid 1980s under the leadership of then R&AW's chief N. F. Suntook, the organisation, it is housed in the CGO complex in New Delhi. ETS is believed to be involved in ELINT