The correct answer is A. The Indira Sagar Dam is built on the Narmada River.
The Narmada River is a major river in central India. It is the fifth-longest river in India, after the Ganges, Brahmaputra, Godavari, and Yamuna. The Narmada originates in the Amarkantak hills of Madhya Pradesh and flows through the states of Madhya Pradesh, Gujarat, and Rajasthan. It empties into the Arabian Sea near Bharuch in Gujarat.
The Narmada is a perennial river and is a major source of irrigation for the states of Madhya Pradesh, Gujarat, and Rajasthan. It is also a major source of hydroelectric power. The Narmada is a sacred river for Hindus and is worshipped by many Hindus.
The Indira Sagar Dam is a large dam on the Narmada River. It is located in the Mandla district of Madhya Pradesh. The dam was built between 1974 and 1992. It is the second-largest dam in India, after the Bhakra Dam.
The Indira Sagar Dam has a number of purposes. It is used for irrigation, hydroelectric power generation, flood control, and water supply. The dam has also been controversial, as it has displaced a large number of people and has had a negative impact on the environment.
The other options are incorrect. The Chambal River is a river in central India. It is the longest tributary of the Yamuna River. The Betwa River is a river in central India. It is a tributary of the Yamuna River. The Tapti River is a river in western India. It is the longest river in the state of Gujarat.