Contact Directory
| Collectorate | |||
| Designation | Landline No | Phone No | |
| Collector | collrchn@nic.in | 044-25268320 044-25268321 044-25268322 044-25268323 044-25228025 |
9444131000 |
| DRO | drochn@nic.in | 044-25229454 | 9445000901 |
| P.A.(General) to the Collector | pagchn@nic.in | 044-25268323 | 9445008132 |
| Deputy Commissioner (Excise) | dcechn@nic.in | 044-25268322 | 9445074574 |
| DRO(Stamps) | drostamps@nic.in | 044-25249697 | 9842411775 |
| Special Deputy Collector (SSS) | sdcchn@nic.in | 044-25268321 | |
| Revenue Divisional Officer, Chennai Central, AnnaNagar | rdochennaicentral@gmail.com | – | 9445461834 |
| Revenue Divisional Officer, Chennai North, Madhavaram | rdonorthchennai@gmail.com | – | 9385250785 |
| Revenue Divisional Officer, Chennai South, Guindy | rdosouthchennai@gmail.com | 044-22351424 | 9150042806 |
| District Adi Dravida Welfare Officer | dadwchn@nic.in | – | 7338801253 |
| District Backward Class Welfare Officer | dbcchn@nic.in | 044-25241002 | 9445477825 |
| Inspection Cell Officer | ico.tnchn@gov.in | – | 9865652546 |
| Assistant Director of Survey and Land Records | adsurchn@nic.in | 044-25226035 | 9940477088 |
| District Differently Abled Welfare Officer (South) | – | 044-24714758 | – |
| District Differently Abled Welfare Officer (North) | dawochn@gmail.com | 044-24315758 | 9499933470 |
| District Manager (TAHDCO) | dmmastahdco@yahoo.com | 044-25246344 | 9445029456 |
| Personal Assistant(Accounts) to the Collector | paachn@nic.in | 044-25268322 | – |
| Personal Assistant (Legal) to the Collector | palchn.tn@nic.in | – | – |
| District Social Welfare Officer (North) | chndswo.4568@gmail.com | 044-25264568 | 9150056800 |
| District Social Welfare Officer (South) | – | 044-25264568 | 9150056853 |
| District Child Protection Officer (North) | – | – | 6369124017 |
| District Child Protection Officer (South) | – | – | 9884541997 |
| Food Safety Officer | – | – | 9442225555 |