US diplomats have warned that commercial airliners flying over the wider Persian Gulf faced a risk of being “misidentified” amid heightened tensions between the US and Iran.

Shipbuilding used to be one of the earliest industries in Bengal that expanded over the oceans from the Indian sea to the Persian Gulf. But it had died down centuries ago with the advent of industrial revolution. When marine engineer Sakhawat Hossain tossed a plan in 1995 to his friends to build cargo vessels—it was an idea that was never tried in the country before.