The Combined Services Detailed Interrogation Centre (India), or CSDIC (I) for short, was the Indian branch of the CSDIC, established during World War II. Established along with the parent section at the start of hostilities in Europe, the branch developed as an important tool for interrogation of enemy troops and informant from November 1942, when the first information emerged of the nascent Indian National Army. The organisation formed a part of the Jiffs campaign, and was initially tasked with identifying Indian troops at risk of defecting to the INA. By the end of the war its task had evolved into interrogating INA soldiers captured in Burma and Malaya, interrogating them regardless of rank and identifying soldiers as white grey or black on the basis of their commitment to Subhas Chandra Bose and Azad Hind. The classifications was to be important in rehabilitating INA soldiers into the British-Indian Army. Col. Hugh Toye, who worked with the unit, later went on to pen the first subtantive history on the INA in his book 1959 book The Springing Tiger.
- Combined Services Detailed Interrogation Centre
- Indian National Army
- Bahadur Group
- Red Fort Trials
- Colonel Hugh Toye
- Fay, Peter W. (1993), The Forgotten Army: India's Armed Struggle for Independence, 1942–1945, Ann Arbor, University of Michigan Press, ISBN 0-472-08342-2.
- Singh, Gajendra. (2005), The Testimonies of Indian Soldiers and the Two World Wars: Between Self and Sepoy, Bloomsbury, ISBN 9781780938202.