Which one of the following states, Dulhasti Hydroelectric power project is located?

In which one of the following states is Suil river project located?

The Dul Hasti Power Station is based on which one of the following rivers ?

Which one of the following States is related with 'Silent Valley Project'?

On which one of the following rivers is the Tehri Hydropower Complex located?

Kalpong Hydroelectric Power project is located in-