AP CM Chandrababu said the govt will release water after Polavaram Cofferdam completion. He said water is released by gravity through both the canals. after completion of Cofferdam. He said Polavaram will be the second biggest project which is to be dedicated to people after Narmada. He said central govt is giving 100% grants to the project which is an asset to the country. He said the total expenditure of project including land acquisition and RR, will be Rs 50,000 crores.