Addressing party workers here, he said Jayalalithaa should have moved the Supreme Court and obtained a stay on the proposal to construct the dam.
The AIADMK MPs also failed to raise the issue in the Parliament, he said, adding construction of dam would affect the supply of drinking water in Coimbatore, Erode and Tirupur districts.
The government should also immediately convene an all party meeting and take steps to meet Prime Minister Narendra Modi to stop the move, he said.
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