Dhaka Airport Domestic Terminal is the one which hosts domestic and regional flights.
Note that the Domestic Terminal is usually called Terminal 3 too.
The Domestic Terminal in Dhaka Airport consists of a single where both Arrivals and Departures are processed.
Please note that there are several exit gates throughout the airport in case of emergency.
See the flight status at Dhaka Domestic Terminal
Take a look at the services at Dhaka Domestic Terminal:
See more Services at Dhaka Airport