Maybe, not sure.
But 2nd tier cities like Comilla have been growing quite fast because it is right next to the main export artery (Dhaka-Chittagong highway) and there are many SEZ's close by which connect to that export artery.
Wooded areas grow quite fast because of weather and locality (rains a lot half the year). The govt. has also designated some protected forest areas and there is an army base close by which is located within the wooded area (Mainamati Cantt.).