| Sr. No. | Office Name | Pincode | Office Type Status | Delivery Status | Division | Region | Circle | Taluk | District Name | Telephone | Related Sub Office | Related Head office |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 501. | Maitala B.O | 743355 | Branch Post Office | Delivery | South Presidency | Calcutta | West Bengal | - | South 24 Parganas | - | Magrahat S.O | Diamond Harbour H.O |
| 502. | Maiterhat B.O | 743355 | Branch Post Office | Delivery | South Presidency | Calcutta | West Bengal | - | South 24 Parganas | - | Magrahat S.O | Diamond Harbour H.O |
| 503. | Makhna B.O | 743503 | Branch Post Office | Delivery | South Presidency | Calcutta | West Bengal | Bishnupur - II | South 24 Parganas | - | Bishnupur S.O (South 24 Parganas) | Baruipur H.O |
| 504. | Malancha Mahinagar S.O | 700145 | Sub Post Office | Delivery | South Presidency | Calcutta | West Bengal | Baruipur | South 24 Parganas | 033-24379872 | - | Baruipur H.O |
| 505. | Malaya B.O | 743399 | Branch Post Office | Delivery | South Presidency | Calcutta | West Bengal | - | South 24 Parganas | - | Dholahat S.O | Baruipur H.O |
| 506. | Mallick Kati B.O | 743502 | Branch Post Office | Delivery | South Presidency | Calcutta | West Bengal | - | South 24 Parganas | - | Bhangar (NF) S.O | Belgharia H.O |
| 507. | Mallick Pratap B.O | 743355 | Branch Post Office | Delivery | South Presidency | Calcutta | West Bengal | - | South 24 Parganas | - | Magrahat S.O | Diamond Harbour H.O |
| 508. | Mallickpore B.O | 700145 | Branch Post Office | Delivery | South Presidency | Calcutta | West Bengal | - | South 24 Parganas | - | Malancha Mahinagar S.O | Baruipur H.O |
| 509. | Mandir Bazar B.O | 743395 | Branch Post Office | Delivery | South Presidency | Calcutta | West Bengal | - | South 24 Parganas | - | South Bishnupur S.O | Baruipur H.O |
| 510. | Manicknagar B.O | 743374 | Branch Post Office | Delivery | South Presidency | Calcutta | West Bengal | - | South 24 Parganas | - | Nishchinta Pur S.O | Diamond Harbour H.O |
| 511. | Manir Tala B.O | 743373 | Branch Post Office | Delivery | South Presidency | Calcutta | West Bengal | - | South 24 Parganas | - | Rudra Nagar S.O | Diamond Harbour H.O |
| 512. | Manirtat B.O | 743349 | Branch Post Office | Delivery | South Presidency | Calcutta | West Bengal | Kultali | South 24 Parganas | - | Kashinagar S.O (South 24 Parganas) | Baruipur H.O |
| 513. | Manmathanagar (M) B.O | 743370 | Branch Post Office | Delivery | South Presidency | Calcutta | West Bengal | - | South 24 Parganas | - | Gosaba S.O | Baruipur H.O |
| 514. | Manmathapur B.O | 743347 | Branch Post Office | Delivery | South Presidency | Calcutta | West Bengal | - | South 24 Parganas | - | Kakdwip S.O | Diamond Harbour H.O |
| 515. | Manoharpur B.O | 743332 | Branch Post Office | Delivery | South Presidency | Calcutta | West Bengal | - | South 24 Parganas | - | Hatuganj S.O | Diamond Harbour H.O |
| 516. | Mansadwip B.O | 743373 | Branch Post Office | Delivery | South Presidency | Calcutta | West Bengal | Sagar | South 24 Parganas | - | Rudra Nagar S.O | Diamond Harbour H.O |
| 517. | Masat B.O | 743375 | Branch Post Office | Delivery | South Presidency | Calcutta | West Bengal | - | South 24 Parganas | - | Usthi S.O | Diamond Harbour H.O |
| 518. | Masjidbati B.O | 743312 | Branch Post Office | Delivery | South Presidency | Calcutta | West Bengal | - | South 24 Parganas | - | Basanti S.O | Baruipur H.O |
| 519. | Matgaran B.O | 743312 | Branch Post Office | Delivery | South Presidency | Calcutta | West Bengal | - | South 24 Parganas | - | Basanti S.O | Baruipur H.O |
| 520. | Matherdighi B.O | 743329 | Branch Post Office | Delivery | South Presidency | Calcutta | West Bengal | - | South 24 Parganas | - | Canning Town S.O | Baruipur H.O |
