Khulna (Bengali: খুলনা ) is the third-largest city in Bangladesh. It is the administrative seat of Khulna District and Khulna Division. The city has a population of more than 1.4 million people. Khulna is an old river port located on the Rupsha River. It is an important hub of Bangladeshi industry and hosts many national companies. It is served by Port of Mongla, the second largest seaport in the country. It is also one of the two principal naval command centres of the Bangladesh Navy.