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