At the time of the 1991 Nepal census it had a population of 5692 .
Sundarpur is a village development committee in Sarlahi District in the Janakpur Zone of south - eastern Nepal .
At the time of the 1991 Nepal census Sundarpur had a population of 5692 .
Sundarpur is a village development committee in Sarlahi District in the Janakpur Zone of south - eastern Nepal .