| S.NO. | Name | Designation | Telephone No | |
| 1. | Shri Rajeev Kapoor | Joint Secretary (AT&A)/CS | 23093668 | |
| 2. | Ms.Monica Bhatia | Director (CS-I) | 24629411 | dircs1-dopt@nic.in |
| 3. | Shri Rajeev Manjhi | DS(CS-II) | 24622365 | |
| 4. | Shri G C Rout | US(CS-I)[P&D] | 24629413 | |
| 5. | Shri K. Suresh Kumar | US(CS-I)[A&S] | 24642705 | |
| 6. | Shri V. Srinivasraghavan | US(CS-I-U) | 24629412 | |
| 7. | Shri Shri Vidyadhar Jha | US(CS-I)[T&CR] | 24624046 | |
| 8. | Shri J Minz | US(CS-II) | 24623157 | |
| 9. | Ms Kiran Vasudev | US(CS-II) | 24654020 | |