Bikaner is a city in the northwest of the state of Rajasthan in western India. The city is the administrative headquarters of Bikaner District. It was formerly the capital of the princely state of Bikaner. The city was founded by Rao Bika in 1486 and from its small origins it has developed into the fourth largest city in Rajasthan. The Ganga Canal completed in 1928 and the Indira Gandhi Canal completed in 1987 have allowed the farming of crops such as mustard, cotton and wheat. Other industries include wool production and the mining of gypsum, plaster of Paris and bentonite.