Which river is associated with Hirakud dam?

With which dam is the Narmada Bachao Andolan associated?

Which river has been named as river of sorrow?

Palar pani is considered the purest form of which type of water?

Which state of India practice this water harvesting system?

Jawaharlal Nehru proudly called the dams as the-----

In India hydro-electric power contributes approximately-------per cent of the total electricity produced.

Rana Pratap Sagar dam is located in which state?

What is 'tanka'?