State Highway 32 links Bettiah
. This 151 km-long stretch spans across the districts of West Champaran
, East Champaran
and passes past some major cities and towns on the way.
State Highway 32 starts at Bettiah and runs south-east up to Areraj; it then turns north-east and travels 31 km to reach Motihari on National Highway 28A. It then runs eastwards, touches Dhaka and then runs through the towns of Belwaghat, Masaudha and Sivhar before ending at Sitamarhi Road.