Thane, social activist Medha Patkar has said that gram sabhas play a huge role in environment protection and added that forests, water and land can be conserved only through decentralized development planning.

Speaking at a felicitation ceremony here on Saturday, he also said that there is a need for immediate action to protect the environment as the consequences of negligence are beginning to surface.

Patkar lamented the "slow rehabilitation process" in the last 38 years for people displaced by the Narmada Dam Project.

"Despite rehabilitation of 50 thousand families as per court orders, thousands of people are still waiting for rehabilitation," he said.