A well developed irrigation facility reduces the dependence of farmers on monsoons and ensures regular supply of water. Irrigation facilities also ensures installation of tube wells, pumps in the farm lands that enable the farmer to irrigate large portions of land more effectively. They also facilitate the construction of dams that help in generating electricity. Better irrigation has contributed in the increased production of maize in states like Karnataka, Uttar Pradesh, Bihar, Andhra Pradesh. Water intensive cropping is now done in places like Ganganagar and Hanumangarh region of Rajasthan where the Indira Gandhi Canal has facilitated easier and better irrigation.