| Sl. No. | Activity | Officer competent to issue permission | Name of the Officer | Phone No. | 
| 1 | Sanction of HSC for domestic use | Commissioner | G. Ramalingam | 9154542663 | 
| 2 | Sanction of HSC for non- domestic use | Commissioner | G. Ramalingam | 9154542663 | 
| 3 | Registration of contractors |