The Chitwan District is one of 77 districts of Nepal, and is located in the southwestern part of Province No. 3 with Bharatpur, the fourth largest city of Nepal, as its district headquarters. It covers an area of 2,238.39 km2 (864.25 sq mi), and in 2011 had a population of 579,984 (279,087 male and 300,897 female) people. Bharatpur is a commercial and service centre of central south Nepal and major destination for higher education, health care and transportation in the region.
You can find the people living in Chitwan from different district of nepal with majority of Dhading, Gorkha, Baglung, mid western part of Nepal .