East Pakistan got separated from West Pakistan(Presently "Pakistan") and became Bangladesh in 1971. So it obviously is a postcard from 1971 or pre-1971 era. I don't know whether the water ski resort still exists there or not? Can a friend from Bangladesh enlighten all of us on the issue???
Kaptai Lake is a man-made lake in South-eastern Bangladesh. The H-shaped lake was created as a result of building of Kaptai Dam on the Kamaphuli River. The dam construction project started in 1956 and finished in 1962. The palace of the king ofthe Chakmas also came under water as a result of filling of the dam.