Isme Azam said there was round four or five more such structures there. The areas would be around 5 sq km. From his seven years of experience working in the area, he said this had all been forest land but over the past five or six years the soil had been eroded and these installations emerged into the open. Another brick structure had emerged by the river Kholpotua. He thinks this was probably a seaport of ancient times, ruined over the ages.