It was built on krishna river
it was buit across krishna river in nalgonda district of telengana and guntur district Andhra Pradesh

Introduction
Nagarjuna Sagar Dam is a significant dam in India located on the Krishna River. It is situated in the Nalgonda and Guntur districts of the states of Telangana and Andhra Pradesh respectively. The dam is named after the Buddhist scholar and philosopher Acharya Nagarjuna.

Location and River
The Nagarjuna Sagar Dam is built on the Krishna River. The Krishna River is one of the longest rivers in India, flowing through the states of Maharashtra, Karnataka, Telangana, and Andhra Pradesh. It is a major source of irrigation and drinking water for the surrounding regions.

Construction and Purpose
The construction of the Nagarjuna Sagar Dam began in the year 1955 and was completed in 1967. The dam was built primarily to serve the purposes of irrigation, hydroelectric power generation, and flood control. It is one of the earliest and largest masonry dams in the world.

Specifications and Capacity
- The dam has a height of 124 meters (407 feet) and a length of 1,550 meters (5,090 feet).
- The reservoir created by the dam has a storage capacity of 11,472 million cubic meters (405,000 million cubic feet).
- The left canal of the dam is called the "Nagarjunasagar Left Bank Canal" and the right canal is called the "Nagarjunasagar Right Bank Canal."

Hydroelectric Power Generation
- The Nagarjuna Sagar Dam has a hydroelectric power station that generates electricity.
- The power station has a total installed capacity of 816 megawatts (MW).
- It consists of eight units, each with a capacity of 110 MW, and one unit with a capacity of 100 MW.

Benefits and Impact
- Irrigation: The dam provides water for irrigation to approximately 10 lakh acres (4,046 square kilometers) of agricultural land in the surrounding areas.
- Hydroelectric Power: The power generated by the dam helps meet the electricity demands of the region.
- Flood Control: The dam plays a crucial role in controlling floods by regulating the flow of water during heavy rainfall.

Tourism and Recreation
- The Nagarjuna Sagar Dam has become a popular tourist destination due to its scenic beauty and the presence of a wildlife sanctuary nearby.
- The reservoir attracts a variety of migratory birds, making it a hotspot for birdwatching.
- Boat rides and water sports are also offered to visitors, enhancing the recreational value of the dam.

Conclusion
The Nagarjuna Sagar Dam, situated on the Krishna River, is a vital infrastructure project that serves multiple purposes. Its construction has significantly contributed to irrigation, hydroelectric power generation, flood control, and tourism in the region. The dam stands as a testament to human engineering prowess and continues to benefit the people and the environment around it.