| S No | Group Number | Task | Date of creation | Time Frame | No of Members |
|---|---|---|---|---|---|
| 1. | CED 39 : WG01 | Review/Revision of IS 4051, IS 9559 , IS 2772 and IS 11333. | 01-09-2024 | 01-09-2024 | 5 |
| 2. | CED 39 : WG02 | - | - | 4 | |
| 3. | CED 39 : WG03 | - | - | 3 | |
| 4. | CED 39 : WG04 | - | - | 4 | |
| 5. | CED 39 : WG05 | - | - | 8 | |
| 6. | CED 39 : WG06 | - | - | 12 | |
| 7. | CED 39 : WG07 | - | - | 4 | |
| 8. | CED 39 : WG08 | - | - | 5 | |
| 9. | CED 39 : WG9 | - | - | 5 | |
| 10. | CED 39 : WG10 | - | - | 4 | |
| 11. | CED 39 : WG11 | - | - | 5 | |
| 12. | CED 39 : WG12 | - | - | 4 | |
| 13. | CED 39 : WG13 | - | - | 8 | |
| 14. | CED 39 : WG14 | - | - | 5 | |
| 15. | CED 39 : WG15 | - | - | 4 | |
| 16. | CED 39 : WG16 | - | - | 3 | |
| 17. | CED 39 : WG17 | To finalize draft standard on substation automation guidelines | 06-08-2019 | 30-11-2019 | 4 |
| 18. | CED 39 : WG18 | - | - | 3 | |
| 19. | CED 39 : WG19 | - | - | 5 | |
| 20. | CED 39 : WG20 | - | - | 3 | |
| 21. | CED 39 : WG21 | - | - | 5 | |
| 22. | CED 39 : WG22 | - | - | 4 | |
| 23. | CED 39 : WG23 | - | - | 3 | |
| 24. | CED 39 : WG24 | - | - | 5 | |
| 25. | CED 39 : WG25 | - | - | 5 | |
| 26. | CED 39 : WG26 | - | - | 4 | |
| 27. | CED 39 : WG27 | - | - | 3 | |
| 28. | CED 39 : WG28 | - | - | 5 | |
| 29. | CED 39 : WG29 | - | - | 3 | |
| 30. | CED 39 : WG30 | - | - | 3 | |
| 31. | CED 39 : WG31 | - | - | 1 | |
| 32. | CED 39 : WG32 | - | - | 4 | |
| 33. | CED 39 : WG33 | - | - | 5 | |
| 34. | CED 39 : WG34 | - | - | 5 |