The 'Chilka lake region'lies in between the deltasof Mahanadi and Godavari.Chilika Lakeis a brackish water lagoon, spread over the Puri, Khurda and Ganjam districts of Odisha state on the east coast of India, at the mouth of the DayaRiver, flowing into the Bay of Bengal, covering an area of over 1,100 km2.