Kalyanpur is a former village development committee, and now headquarters of Khadak Municipality in Saptari District in the Sagarmatha Zone of south-eastern Nepal. At the time of the 2011 Nepal census it had a population of 8,724 people living in 1,705 individual households. This is one of the well-developed village development committee in Saptari District. Kalyanpur is a village development committee in Saptari District in the Sagarmatha Zone of south-eastern Nepal. At the time of the 2011 Nepal census it had a population of 8724 people living in 1705 individual households. This is one of the well-developed village development committee in Saptari District. VDC Name :Kalyanpur VDC Households :1705 District Name :Saptari Area in Square Km :19.1 Zone :Sagarmatha Development Region :Eastern Ecological Zone :Terai Ecological Sub Zone :Eastern Terai Male :4144 Female :4580 Total Population :8724 Population Density :457 per km