The Gangetic plains are very fertile and the main crops include rice, wheat, maize, barley, and oilseeds. The economy of Bhagalpur is dependent mainly on agriculture and small businesses. Bhagalpur has been associated with the silk industry for hundreds of years, and famous all over India for its Tussar Silk & Bhagalpuri Saree. Silkworms are employed to produce the renowned Tussar Silk from which Tussar Saree is manufactured. The Silk Institute and Agricultural University are located in the city.