(1) Indian Administrative Service (2) Indian Foreign Service (3) Indian Police Service (4) Indian Audit and Accounts Service, Group ‘A’ (5) Indian Civil Accounts Service, Group ‘A’ (6) Indian Corporate Law Service, Group ‘A’ (7) Indian Defence Accounts Service, Group ‘A’ (8) Indian Defence Estates Service, Group ‘A’ (9) Indian Information Service, Junior Grade Group ‘A’ (10) Indian Postal Service, Group ‘A’ (11) Indian P&T Accounts and Finance Service, Group ‘A’ (12) Indian Railway Protection Force Service, Group ‘A’ (13) Indian Revenue Service (Customs & Indirect Taxes) Group ‘A’ (14) Indian Revenue Service (Income Tax) Group ‘A’ (15) Indian Trade Service, Group ‘A’ (Grade III) (16) Armed Forces Headquarters Civil Service, Group ‘B’ (Section Officer’s Grade) (17) Delhi, Andaman, and the Nicobar Islands, Lakshadweep, Daman & Diu and Dadra & Nagar Haveli Civil Service (DANICS), Group ‘B’ (18) Delhi, Andaman, and the Nicobar Is