Air traffic flow in Bangladesh is rapidly increasing day by day. Existing infrastructure facilities of the airports in Bangladesh are not sufficient to meet the future air traffic demand of the country. At present, Hazrat Shahjalal International Airport (HSIA), Dhaka is the busiest airport of the country, through which about 80% of the total air traffic flow takes place. It has an area of 1981 acres (802ha) land. To ensure future demand government build new Airport called 3rd Terminal Building and to ensure world class seamless operation government decide to Operation and maintenance of this new terminal will be under PPP mode and approved the project on January 2023.