In Namakkal district, Tamil Nadu, PIN code 637403 is anchored by Melkallupalayam B.O, a Branch Post Office. Mail addressed to this code is sorted through the Southern Postal Region, across 7 listed offices.
| Post office | Type | Full name |
|---|---|---|
| Melkallupalayam B.O | BO | Branch Post Office |
| Pillanallur B.O | BO | Branch Post Office |
| Sarkar Nattamangalam B.O | BO | Branch Post Office |
| 85 R.Komarapalayam B.O | BO | Branch Post Office |
| Munjanur B.O | BO | Branch Post Office |
| Agraharam B.O | BO | Branch Post Office |
| Gurusamipalayam S.O | SO | Sub Post Office |
