| NAME | DESIGNATION | TELEPHONE | FAX |
| Shri Arjun Munda | Minister-in-Charge | 2400253 | |
| Shri N.N. Sinha, I.A.S. | Principal Secretary | 0651-2400239 | 0651-2400243 |
| Shri A.P. Choudhary, I.F.S. | Special Secretary | 0651-2401936 | |
| Sri Ram Naresh Raman | Engineer-in-Chief | 0651-2400747 | |
| Shri Anand Mohan Thakur | Deputy Secretary | 0651-2400846 | 2401812 |
| Sri Patwari Soren | Chief Engineer (Communication) | 0651-2233988 | 2233988 |
| Sri Murari Bhagat | Chief Engineer NH | 0651-2400504 | 2400863 |
| Sri R.N. Raman | Chief Engineer CDO | 0651-22400922 | 2400485 |
| Sri Ajit Kumar | Tech. Secy. to EIC | | |
| Sri Om Prakash Vimal | Director, ADB | | |
| Sri Praveen Kumar | Dy. Secy. (Management) | 6451864 | |
| Sri Arun Kumar Pandey | Planning & Investigation, H.Q. | 6451856 | |
| Shri Ravindra Pandey | Executive Engineer(Monitoring) | 6451867 | |
| Sri Jai Prakash Singh, | Executive Engineer, ADB Cell | 6451844 | 0651-2280835 |
| Sri Sudhir Bara | Under Secy.-2 | | |
| Sri Ganesh Prasad | Under Secy-1 | 6451861 | |
| Sri Virendra Narayan | Assistant Engineer (Hd. Qr.) | 6451836 | |
| Sri N. Sahay | Dy. Director, ADB, Cell | 2401917 | 2280835 |
| Sri Prasanna Kumar | Planning Officer H.Q. | | |
| Sri Manoj Kumar Verma | Assistant Engineer, E-procurement | 2401010 | |
| Sri Ramesh Pd. Singh | Assistant Engineer, E-procurement | 2401010 | |
| Pramod Kumar | Private Secy. to Principal Secretary | 0651-2400854 | |