| # | Village / Locality | Post Office | PIN Code | Sub District | Type |
|---|---|---|---|---|---|
| 401 | Malotar Tea Garden | Mahanadi BO | 📍 734203 | Kurseong | Branch Post Office |
| 402 | Manabari Khasmahal | Manabari SO | 📍 735222 | Gorubathan | Post Office - PO |
| 403 | Manasa | Khoribari SO | 📍 734427 | Kharibari | Post Office - PO |
| 404 | Mandila Jhar | Phansidewa SO | 📍 734434 | Phansidewa | Post Office - PO |
| 405 | Mandlaguri P | Matigara SO | 📍 734010 | Matigara | Post Office - PO |
| 406 | Manedara | Maney Dara BO | 📍 734213 | Rangli Rangliot | Branch Post Office |
| 407 | Mangalsing | Naksalbari SO | 📍 734429 | Naxalbari | Post Office - PO |
| 408 | Mangarjung Tea Garden Nagri | Mangarjung BO | 📍 734215 | Jorebunglow Sukiapokhri | Branch Post Office |
| 409 | Mangber Forest | Chibo Busty BO | 📍 734301 | Kalimpong -I | Branch Post Office |
| 410 | Mangber Forest | Tista Bridge SO | 📍 734312 | Kalimpong -I | Post Office - PO |
| 411 | Mangchu Forest | Dara Goan BO | 📍 734201 | Kalimpong - II | Branch Post Office |
| 412 | Mangchu Forest | Chhumirchin Manchu BO | 📍 734314 | Kalimpong - II | Branch Post Office |
| 413 | Mangpong Forest | Algarah SO | 📍 734314 | Kalimpong -I | Post Office - PO |
| 414 | Mangpu Cinchona Plantation | Mungpoo SO | 📍 734313 | Kurseong | Post Office - PO |
| 415 | Mangpu Cinchona Plantation | Ranju Valley BO | 📍 734313 | Kurseong | Branch Post Office |
| 416 | Mangwa Forest | Takling BO | 📍 734312 | Kalimpong -I | Branch Post Office |
| 417 | Manjha Fst Pan F Rly | Belgachi SO | 📍 734423 | Mirik | Post Office - PO |
| 418 | Manjha Tea Garden | Naksalbari SO | 📍 734429 | Naxalbari | Post Office - PO |
| 419 | Manjoy | Khoribari SO | 📍 734427 | Kharibari | Post Office - PO |
| 420 | Manjua Forest | Belgachi SO | 📍 734423 | Mirik | Post Office - PO |
| 421 | Mansong Cinchona Plantation | Munsong SO | 📍 734315 | Kalimpong - II | Post Office - PO |
| 422 | Marapur | Naksalbari SO | 📍 734429 | Naxalbari | Post Office - PO |
| 423 | Maria Khasmahal | Kagay Bazar BO | 📍 734311 | Kalimpong - II | Branch Post Office |
| 424 | Mariabong Tea Garden | Marybong BO | 📍 734102 | Jorebunglow Sukiapokhri | Branch Post Office |
| 425 | Marma Tea Garden | Duptin-10 BO | 📍 734214 | Mirik | Branch Post Office |
| 426 | Mathapari | Matigara SO | 📍 734010 | Matigara | Post Office - PO |
| 427 | Matigara | Matigara SO | 📍 734010 | Matigara | Post Office - PO |
| 428 | Matigara | New Rangia BO | 📍 734013 | Matigara | Branch Post Office |
| 429 | Matigara | North Bengal University SO | 📍 734013 | Matigara | Post Office - PO |
| 430 | Matigarahat | Matigara SO | 📍 734010 | Matigara | Post Office - PO |
| 431 | Matigarahat | Gossaipur BO | 📍 734014 | Matigara | Branch Post Office |
| 432 | Mayaram | Naksalbari SO | 📍 734429 | Naxalbari | Post Office - PO |
| 433 | Maynaguri | Khoribari SO | 📍 734427 | Kharibari | Post Office - PO |
| 434 | Mayrong Forest | Tendrabong BO | 📍 734314 | Kalimpong - II | Branch Post Office |
| 435 | Mazeok Forest | Samthar BO | 📍 734301 | Kalimpong -I | Branch Post Office |
| 436 | Mechi Forest | Naksalbari SO | 📍 734429 | Naxalbari | Post Office - PO |
| 437 | Meherulla | Phansidewa SO | 📍 734434 | Phansidewa | Post Office - PO |
| 438 | Mim Nagri Range | Mim BO | 📍 734221 | Jorebunglow Sukiapokhri | Branch Post Office |
| 439 | Mim Tea Garden | Mim BO | 📍 734221 | Jorebunglow Sukiapokhri | Branch Post Office |
| 440 | Minghara | Naksalbari SO | 📍 734429 | Naxalbari | Post Office - PO |
| 441 | Mingharar Chhat | Naksalbari SO | 📍 734429 | Naxalbari | Post Office - PO |
| 442 | Mir Jangla | Naksalbari SO | 📍 734429 | Naxalbari | Post Office - PO |
| 443 | Mirik | Mirik SO | 📍 734214 | Mirik | Post Office - PO |
| 444 | Mirik Khasmahal P | Mirik SO | 📍 734214 | Mirik | Post Office - PO |
| 445 | Mirjangler Chhat | Naksalbari SO | 📍 734429 | Naxalbari | Post Office - PO |
| 446 | Mohan Laler Chhat | Phansidewa SO | 📍 734434 | Phansidewa | Post Office - PO |
| 447 | Mohanadi Forest | Mahanadi BO | 📍 734203 | Matigara | Branch Post Office |
| 448 | Mohorgon Tea Garden | Gulma BO | 📍 734009 | Matigara | Branch Post Office |
| 449 | Molani | Phansidewa SO | 📍 734434 | Phansidewa | Post Office - PO |
| 450 | Molatey Tea Garden Aveneroge | Nagrispur SO | 📍 734215 | Jorebunglow Sukiapokhri | Post Office - PO |