The correct answer is option 'C' - Narmada.

The Sardar Sarovar Dam, also known as the Narmada Dam, is constructed on the Narmada River. It is one of the largest concrete dams in the world and is located in the state of Gujarat, India.

Construction and Features of the Sardar Sarovar Dam:

The construction of the Sardar Sarovar Dam began in 1987 and was completed in 2017. It is a multipurpose project designed to provide various benefits to the region, including irrigation, drinking water supply, hydroelectric power generation, and flood control.

Key features and benefits of the Sardar Sarovar Dam:

1. Irrigation: The dam provides irrigation water to a large area of Gujarat, Rajasthan, and Madhya Pradesh. It has a canal network of over 75,000 kilometers, which helps in the irrigation of agricultural land.

2. Drinking water supply: The dam also supplies drinking water to millions of people in Gujarat and neighboring states. It helps in meeting the water demands of both urban and rural areas.

3. Hydroelectric power generation: The Sardar Sarovar Dam has a power station with an installed capacity of 1,450 MW. It generates clean and renewable energy, contributing to the country's power grid.

4. Flood control: The dam helps in controlling floods by regulating the flow of the Narmada River. It reduces the risk of floods in downstream areas and protects surrounding regions from potential damage.

5. Water storage: The reservoir created by the dam has a storage capacity of 9.43 billion cubic meters. It helps in storing water during the monsoon season and releasing it during the dry season, ensuring a continuous water supply throughout the year.

The construction of the Sardar Sarovar Dam faced significant controversy and opposition due to its potential impact on the environment and displacement of local communities. However, it has also brought numerous benefits to the region and has become an important landmark in India's infrastructure development.

In conclusion, the Sardar Sarovar Dam, one of the largest concrete dams globally, is constructed on the Narmada River. It serves multiple purposes, including irrigation, drinking water supply, hydroelectric power generation, and flood control, providing significant benefits to the region.