Kapilvastu District, often Kapilbastu, Birth Place of GAUTAM BUDDHA is one of the districts of Lumbini Province, Nepal. The district, with Kapilbastu municipality as its district headquarters, covers an area of 1,738 square kilometres (671 sq mi) and in 2001 had a population of 481,976, which increased to 571,936 in 2011 and later according 2021 census it further increased to 686,739 Kapilvastu district has 3 number of seats for central whereas 6 seats for state level elections.

Lumbini Province is a province in western Nepal. The country's third largest province in terms of area as well as population, Lumbini is home to the World Heritage Site of Lumbini, where according to the Buddhist tradition, the founder of Buddhism, Gautama Buddha was born.