The details of Manpower of PHPA-I as on 01.09.2023
| Nationality | Deputation | Contract | Total |
| Bhutanese | 3 | 416 | 419 |
| Indian | 4 | 31 | 35 |
| Total | 7 | 447 | 454 |
25 Bhutanese & 07 Indians are Executive Engineer level and above(Including Management)
The details of Manpower of PHPA-I as on 01.09.2023
| Nationality | Deputation | Contract | Total |
| Bhutanese | 3 | 416 | 419 |
| Indian | 4 | 31 | 35 |
| Total | 7 | 447 | 454 |
25 Bhutanese & 07 Indians are Executive Engineer level and above(Including Management)