| Office Name | Cossipore Gun Factory S.O |
| Pincodes | 700002 |
| Area | Cossipore Gun Factory |
| Office Status | Sub Post Office |
| Postal Circle | West Bengal |
| Postal Division | Kolkata North |
| Postal Region | Calcutta |
| District | Kolkata |
| State | West Bengal |
| Telephone No. | 033-25571432 |