RAS question
The Nagarjuna Sagar Dam is on:
Correct answer: (C) Krishna River (Telangana-Andhra Pradesh border).
Nagarjuna Sagar Dam is built across the Krishna River between Telangana and Andhra Pradesh.
Explanation
Nagarjuna Sagar Dam is associated with the Krishna River, not with the other major peninsular rivers listed in the options. The Nalgonda district page of the Government of Telangana describes Nagarjunasagar Dam as being located in Nalgonda district and built across the River Krishna. The dam lies between Telangana and Andhra Pradesh and is a 1968 multipurpose project. Its wider significance comes from irrigation and hydro-electricity, so the key exam takeaway is the river-location link: Nagarjuna Sagar equals Krishna River, with irrigation and power generation as its major roles.
Why the other options are wrong
- (A) Tungabhadra River is wrong because Nagarjuna Sagar Dam is built across the River Krishna, not across Tungabhadra.
- (B) Kaveri River is wrong because Nagarjuna Sagar Dam belongs to the Krishna River system, not the Kaveri River system.
- (D) Godavari River is wrong because Nagarjuna Sagar Dam is tied to the Krishna River, while Godavari is a different peninsular river system.
Concept
This tests the standard Geography of India mapping link between major multipurpose river-valley projects and their rivers. It recurs in RAS because dams often combine location, river system, irrigation and hydropower facts in one short factual question.