Nilakkottai is Taluka (Tehsil) in Dindigul district of Tamil Nadu state. Nilakkottai has 16 areas (postal offices).
| Pin code | Area | District | Taluka | Postal Status |
|---|---|---|---|---|
| 624201 | Ammayanaickanur PIN Code | Dindigul | Nilakkottai | Sub Office |
| 624206 | K Rajathanikottai PIN Code | Dindigul | Nilakkottai | Branch Office |
| 624215 | Kariampatti PIN Code | Dindigul | Nilakkottai | Branch Office |
| 624215 | Kattakoothanpatti PIN Code | Dindigul | Nilakkottai | Branch Office |
| 624206 | Kodairoad R S PIN Code | Dindigul | Nilakkottai | Sub Office |
| 624707 | Mallayapuram PIN Code | Dindigul | Nilakkottai | Branch Office |
| 624206 | Metturgate PIN Code | Dindigul | Nilakkottai | Branch Office |
| 624215 | Micheal Palayam PIN Code | Dindigul | Nilakkottai | Branch Office |
| 624206 | Oruthattu PIN Code | Dindigul | Nilakkottai | Branch Office |
| 624220 | Rajathanikottai PIN Code | Dindigul | Nilakkottai | Branch Office |
| 624215 | Sangalpatty PIN Code | Dindigul | Nilakkottai | Branch Office |
| 624215 | Sankarapuram PIN Code | Dindigul | Nilakkottai | Branch Office |
| 624708 | Sithayankottai PIN Code | Dindigul | Nilakkottai | Sub Office |
| 624220 | Theppathupatti PIN Code | Dindigul | Nilakkottai | Branch Office |
| 624206 | Uthupatti PIN Code | Dindigul | Nilakkottai | Branch Office |
| 624707 | Vannampatti PIN Code | Dindigul | Nilakkottai | Branch Office |