Out of the structures built to store water in the Vijayanagara empire, which was the mostprominent resource ? Who built it ?

Out of the structures built to store water in the Vijayanagara empire,

1.	Out of the structures built to store water in the Vijayanagara empire, which was the mostprominent resource ? Who built it ?
Answer» SOLUTION :It was Hiriya CANAL BUILT by the SANGAMA DYNASTY.