[2] In Pre-partition era of British India, coal from Garo hills of Meghalaya was transported and traded through East Bengal.
Mining offices opened in Dhaka and trade was aided by British Rail network in India.
[4] Bangladesh has an estimated 2 billion tonnes of coal in underground reserves in the Northwest region of the country.
[5] Bangladeshi coal reserves are underexplored because of concerns related to method, technology, and social consequences.
[6] Coal and limestone mined in Meghalaya was transported to Bangladesh, and helped the establishment of cement factories there.