Kishanganj district, which was previously part of
Purnia district, is part of the
Mithila region. Mithila first gained prominence after being settled by
Indo-Aryan peoples who established the
Mithila Kingdom (also called Kingdom of the Videhas) which was ruled by the Videhas, an Indo-Aryan tribe. Present Kishanganj was in the western part of the Pundra region which was initially outside the Indo-Aryan band of settlement. There are still tales of the fort of Raja
Virat in Thakurganj tehsil who gave the Pandavas shelter during their exile. Pundra was included in the Mauryan Empire, and it was then included in the Gupta Empire. The region was visited by
Xuanzang during his travels and was conquered by Shashanka in the early 7th century. The Palas and Senas then took over the district before the Muslim conquest. ==Sub-divisions==