Bathai is a village in Darbhanga district, Bihar, India. It is on the bank of the Kamla Balan River.
According to the 2011 census it has a population of 3664 living in 608 households.[1]
A middle and high school is in the east of village.
The main castes in the village are Brahmin.
The language spoken in village is Maithili.
Almost 50% of the population of Bathai are in Delhi and Mumbai due to unemployment.