Question

Name a dam that was a subject of much opposition from the locals as well as the ngo's

Answer 1

Sardar Sarovar Dam on river Narmada

Answer 2

Sardar Sarovar Dam
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==> Sardar Sarovar is the second largest dam in the world. 
==> It is 800 meters high on the river Narmada. 
==>  The purpose of these projects is to bring water to the drought-hit areas of Gujarat and to generate electricity for Madhya Pradesh but these projects have gone up considerably from their estimated cost.