| Place | Post Code |
|---|---|
| Mahuawan, Magadh) | 824303 |
| Mahuli, Magadh) | 824301, 824303 |
| Maigara, Magadh) | 824301 |
| Majhauli, Magadh) | 824303 |
| Majhiawan, Magadh) | 824303 |
| Majhiyawan, Magadh) | 824303 |
| Makhdumpur, Magadh) | 824303 |
| Maktaur, Magadh) | 824303 |
| Mali, Magadh) | 824301, 824102 |
| Maluka Bigha, Magadh) | 824302 |
| Malwariya, Magadh) | 824302 |
| Mangabar, Magadh) | 824303 |
| Mangi, Magadh) | 824303 |
| Manohari, Magadh) | 824123 |
| Mansara, Magadh) | 824301 |
| Manukhap, Magadh) | 824302 |
| Marar Sargara, Magadh) | 824302 |
| Mathurapur, Magadh) | 824303 |
| Mauapur, Magadh) | 824301 |
| Mehiyan, Magadh) | 824302 |