Modanganj is a Sub-District (Tehsil/Block/Mandal) in the Jehanabad District of Bihar. As par Census 2011 information the sub-district code of Modanganj is 01538. There are about 7 sub-districts in Jehanabad and Modanganj is one of them. Ghoshi, Hulasganj, Jehanabad, Kako, Makhdumpur, Ratni Faridpur etc. are other sub-districts in Jehanabad.There are about 54 villages in Modanganj sub-district, which you can browse from villages list.