1 2 3 4 5 6 7 8 9 Indian Administrative Service. Indian Foreign Service. Indian Police Service. Indian P & T Accounts & Finance Service, Group ‘A’. Indian Audit and Accounts Service, Group ‘A’. Indian Revenue Service (Customs and Central Excise) Group 'A' Indian Defiance Accounts Service, Group ‘A’. Indian Revenue Service, Group ‘A’. Indian Ordnance Factories Service, Group 'A' (Assistant Works Manager, Administration) Indian Postal Service, Group ‘A’. 13 14 15 16 17 18 19 20 21 Indian Railway Accounts Service, Group ‘A’. Indian Railway Personnel Service, Group ‘A’. Post of Assistant Security Officer, Group 'A' in Railway Protection Force. Indian Defence Estates Service, Group ‘A’. Indian Information Service (Junior Grade), Group ‘A’. Indian Trade Service, Group "A" (GR.III) Indian Corporate Law Service, Group "A" Armed Forces Headquarters Civil Service, Group ‘B’ (Section Officer’s Grade) Delhi, Andaman & Nicobar Islands, Lakshadweep, Daman & Diu and Dadra & Nagar Haveli Civil Service, Group ‘B’ Delhi, Andaman & Nicobar Islands, Lakshadweep, Daman & Diu and Dadra & Nagar Haveli Police…