The correct answer is C) Nagarjuna Sagar Dam.
The Nagarjuna Sagar Dam is a gravity dam on the Krishna River located in the Nalgonda district of Telangana, India. It is the second-largest dam in India by volume and the largest dam in the state of Telangana. The dam was constructed between 1955 and 1969 and was inaugurated by Jawaharlal Nehru on 17 November 1969.
The Nagarjuna Sagar Dam is a multipurpose dam with the primary objective of irrigation. The dam provides irrigation to an area of over 2.7 million hectares in the states of Andhra Pradesh, Telangana, and Karnataka. The dam also generates hydroelectric power and provides flood control.
The Nagarjuna Sagar Dam is a major tourist attraction in Telangana. The dam is located in a scenic setting and offers stunning views of the Krishna River and the surrounding hills. The dam is also home to a number of temples and shrines.
The other options are incorrect because they are not dams in Telangana. Option A, Sriram Sagar Dam, is a dam on the Godavari River located in the Karimnagar district of Telangana. Option B, Nizam Sagar Dam, is a dam on the Manair River located in the Nizamabad district of Telangana. Option D, Srisailam Dam, is a dam on the Krishna River located in the Kurnool district of Andhra Pradesh.