BY-SA 4.0 Creative Commons Attribution-Share Alike 4.0 truetrue English Tribal Chief, Chemban Vellayan Kolumban who pointed out Idukki Arch Dam site...
https://creativecommons.org/licenses/by-sa/4.0CC BY-SA 4.0 Creative Commons Attribution-Share Alike 4.0 truetrue English Idukki Arch Dam Site prior to construction start...
