Mammoodu BO is the primary post office registered under PIN code 686536 in Kottayam, Kerala. This code sits within the Southern Postal Region, with 3 offices operating under it.
| Post office | Type | Full name |
|---|---|---|
| Mammoodu BO | BO | Branch Post Office |
| Perumpanachy SO | SO | Sub Post Office |
| Kurumpanadom BO | BO | Branch Post Office |
