There are still doubts on integration of main dam & coffer dam to reserve water through Polavaram project. National Hydro Power Corporation team recommended the proposal of integration of both the dams after their recent visit for the study of the project. Experts team also suggested that by integration the length of coffer dam as well as the cost will also be reduced. But Polavaram project high officials and advisor of central minister Gadkari expressed difficulty over integration. The decision taken by National Water Resource's Formats Review Committee is going to be important which will visit in January 1st week.