India’s Central Intelligence Bureau or IB is one of the oldest intelligence agencies in the world. The IB is under the Ministry of Home Affairs but, in practice the Director IB (DIB) is a member of the Joint Intelligence Committee (JIC) and Steering Committee and has the authority to brief the Prime Minister should the need arise.
The collection mechanisms of the IB vary depending on the region, but it operates both at the state level as well as the national level. The bulk of the intelligence collection is carried out by `Grade II’ employees of the IB, i.e. in increasing order of seniority; the Security Assistants (Constable), the Junior Intelligence Officers (Head Constable), the Asst. (Central) Intelligence Officer (Sub-Inspector), Deputy Central Intelligence Officers (Inspector), and Joint Central Intelligence Officers (Superintendent of Police). The `Class I’ (gazette) officers carry out coordination and higher-level management the IB. These officers are Asst. Director, the Deputy Director, Joint Director, Addl. Director, Special Director or Special Secretary and finally the Director IB.