The Tehri Dam is the highest dam in India and one of the highest in the world. It is a multi-purpose rock and earth-fill embankment damon the Bhagirathi River near Tehri in Uttarakhand, India.

Introduction:
The Tehri Dam is a multipurpose rock and earth-fill embankment dam on the Bhagirathi River in Uttarakhand, India. It is one of the largest hydroelectric projects in the country and provides various benefits like electricity generation, irrigation, and water supply.

The Bhagirathi River:
The Bhagirathi River is a major tributary of the Ganges River and is considered the source stream of the Ganges. It originates from the Gangotri Glacier in the state of Uttarakhand and flows through the Garhwal region. The river is named after King Bhagirath, who is believed to have brought the River Ganges down to Earth.

Construction of the Tehri Dam:
The Tehri Dam is being constructed on the Bhagirathi River. The project was initiated in 1978 and is being implemented by the Tehri Hydro Development Corporation (THDC) Ltd. The dam is located in the Tehri district of Uttarakhand and is a part of the larger Tehri Hydro Complex.

Purpose of the Tehri Dam:
The Tehri Dam serves multiple purposes and has several benefits. The primary purpose of the dam is hydroelectric power generation. It has an installed capacity of 1,000 megawatts and generates a significant amount of electricity for the region. The dam also provides irrigation water to the nearby agricultural areas, improving agricultural productivity.

Environmental and Social Impact:
The construction of the Tehri Dam has had both positive and negative impacts on the environment and local communities. The dam has resulted in the submergence of a large area, leading to the displacement of several villages and loss of agricultural land. However, it has also helped in flood control and water supply management.

Conclusion:
In conclusion, the Tehri Dam is being constructed on the Bhagirathi River. The dam is a significant project that serves multiple purposes, including electricity generation and irrigation. While it has had some adverse effects on the environment and local communities, it also provides important benefits for the region.