| Office: | Member of Parliament, Lok Sabha |
| Term Start: | 1998 |
| Term End: | 1999 |
| Predecessor: | Pappu Yadav |
| Successor: | Pappu Yadav |
| Constituency: | Purnia |
| Birth Date: | 1950 12, df=y |
| Birth Place: | Barahari, Purnia district, Bihar |
| Party: | Bharatiya Janata Party |
| Spouse: | Sushma Mandal |
| Father: | Raghubar Mandal |
| Education: | Bachelor of Arts |
| Alma Mater: | Bihar National College |
| Source: | https://loksabhaph.nic.in/writereaddata/biodata_1_12/3875.htm |
Jai Krishna Mandal is an Indian politician from Bihar who represented Purnia in the Lok Sabha from 1998 to 1999. However he lost the subsequent election to Pappu Yadav.[1]