S.No.

Service

1

Central  Company  Law Service               

2

Central Engineering Service (Roads)               

3

Central Power Engineering Service                

4

Indian Trade Service

5

Central Water Engineering Service                

6

Central  Engineering Service (CPWD)

7

Indian Administrative Service               

8

Indian Audit & Account Service

9

Indian Broadcasting (Engineering) Service

10

Indian Broadcasting Programme Service

11

Indian Civil Accounts Service                 

12

Indian Cost Accounts Service

13

Indian Defence Accounts Service               

14

Indian Defence Estate Service               

16

Indian Economic Service                

17

Indian Forest Service

18

Indian Information Service

19

Indian Inspection Service              

20

Indian Ordnance Factory Service

21

Indian P&T Finance & Accounts Service

22

Indian Police Service                          

23

Indian Postal Service                   

24

Indian Railway Accounts Service               

25

Indian Railway Personnel Service

26

Indian Railway Service of Electrical Engineers

27

Indian Railway Service of Engineers

28

Indian Railway Service of Mechanical Engineers

29

Indian Railway Service of Signal Engineers

30

Indian Railway Store Service

31

Indian Railway Traffic Service               

32

Indian Revenue Service(C&CE)                    

33

Indian Revenue Service(IT)                      

34

Indian Statistical Service              

35

Indian Supply Service

36

Indian Telecom Service

37.

Geological Survey of India, Group 'A' Service