NEW DELHI: India’s power ministry has asked utilities to import 6% of their coal requirement until September, according to a letter seen by Reuters, warning that domestic supplies could be curtailed if import targets are not met.

Coal accounts for more than 70% of India’s power generation, with coal-fired plants accounting for more than three quarters of India’s use of the polluting fuel.

India expects domestic coal supply of 392 million tonnes during the six months to the end of September and expects coal availability to fall short of demand by 24 million tonnes, according to the letter sent to heads of energy departments of states and managing directors of all utilities.