ous municipal area, particularly in the southwest up to Patenga, where Chittagong International Airport is now located. The former villages of Halishahar, Askarabad and Agrabad became integrated into the city. The Chittagong Development Authority (CDA) was established by the government of East Pakistan in 1959 to manage this growth and drew up a master plan to be reviewed every five years to plan its urban development. By 1961 the CDA had drawn up a regional plan covering an area of 212 square miles (550 km) and a master plan covering an area of 100 square miles (260 km). Over the decades, especially after the losses of 1971, the master plan developed into several specific areas of management, including the Multi-Sectoral Investment Plan for drainage and flood-protection of Chittagong City and a plan for easing the traffic congestion and making the system more efficient.
In 1971, during the Bangladesh Liberation War, Chittagong suffered massive losses in people and buildings given that they denied the occupation army access to the port. The first public announcement was made over the radio from the Swadhin Bangla Betar Kendra located at Kalurghat, Chittagong. Following the independence of Bangladesh, the city underwent a major rehabilitation and reconstruction programme and regained its status as an important port within a few years
