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 committees in Saptari District.
VDC Name :Kalyanpur<br> VDC Households :1705<br> District Name :Saptari<br> Area in Square Km :19.1<br> Zone :Sagarmatha<br> Development Region :Eastern<br> Ecological Zone :Terai<br> Ecological Sub Zone :Eastern Terai<br> Males :4144<br> Females :4580<br> Total Population :8724<br> Population Density :457 per km<sup>2</sup>