Sabuj Dwiper Raja (1979)

A criminal gang is set to steal a secret source of energy that emanates from a meteorite that has landed on a remote island. They know that the local tribes have no idea of its value. A patriot, Mr. Talukdar, befriends the tribals. Thirteen-year-old Santu joins his uncle who is sent on behalf of the Intelligence to survey the island. The two leave Calcutta by ship for the Andaman Islands. Santu's sharp eye soon detects that the criminals are on board. Santu is instrumental in helping his uncle prevent the dastardly plot the criminals are about to carry out.