Explanations:The Indira Gandhi Canal, also known as the Rajasthan Canal, is a significant water supply system that provides water to the desert regions of Rajasthan, particularly the Thar Desert. This canal is one of the largest irrigation projects in the world and plays a crucial role in the agricultural development of the region. The canal was constructed to bring water from the Beas and Sutlej rivers, which are part of the Indus River system, to the arid regions of Rajasthan.
The Indira Gandhi Canal is divided into three parts: the Western Yamuna Canal, the Rajasthan Feeder Canal, and the Rajasthan Main Canal. The Rajasthan Main Canal is the longest part of the canal system and extends over 650 kilometers. It was designed to provide water for irrigation, drinking, and industrial purposes in the desert regions of Rajasthan, which are otherwise extremely arid and receive very little rainfall.
The canal system has significantly improved the agricultural productivity of the region by providing a reliable source of water for crops. It has also helped in the development of industries and improved the quality of life for the people living in the desert regions. The canal system is a remarkable engineering feat that has transformed the landscape and economy of Rajasthan.
Other options such as the Sutlej Basin, Narmada, and Tapi are not directly related to the water supply systems in Rajasthan. The Sutlej Basin is part of the Indus River system and is primarily associated with the states of Punjab and Haryana. The Narmada and Tapi rivers are located in central India and do not supply water to the desert regions of Rajasthan. They are significant rivers in their own right, but they do not play a role in the water supply systems of Rajasthan.
Therefore, the Indira Gandhi Canal is the correct answer as it is the major canal system that provides water to the desert regions of Rajasthan, making it a crucial part of the region's water supply infrastructure.