Mahendragarh district is one of the 21  districts of Haryana state in northern India. The district occupies an area of 1,859 km². The district has a population of 812,022 (2001 census). Narnaul city is the administrative headquarters of the district. Mahendragarh is one of the very few districts in India where the name of the district and its main town are different. Ateli and narnaul have a Sonalika Tractors agency named as Piyush Tractors.