Siwani is a city and a municipal committee in Bhiwani district in the north Indian state of Haryana. It is the administrative headquarters of Siwani tehsil. Siwani Mandi is very famous in the Bhiwani district for its agricultural market. There are many Guar Gum factories in Siwani. In recent times education standards have improved and a few students got admitted to prestigious IITs and NITs.