Khulna

Khulna was part of the ancient kingdoms of Vanga, Gangaridai and Samatata. After the end of the Pala Empire, it was ruled by the Sena dynasty during the 12th-century reign of Ballala Sena, and formed part of the Bagri division of Bengal. During the 14th century, Shamsuddin Firoz Shah was the first Muslim ruler to arrive in the city. Muslim settlements increased during the time of Shamsuddin Ilyas Shah, and many mosques and shrines were established. A Muslim saint, Khan Jahan Ali, acquired a jagir (fiefdom) encompassing a large part of Khulna Division from the king of Gauḍa during the 15th century and renamed the region as Jahanabad. Ali ruled until he died in 1459. After Ali's death, the city became part of the Bengal Sultanate. …

Khulna is Bangladesh's third-largest city, after Dhaka and Chittagong. It is in the southwestern part of the country, on the Rupsha and Bhairab Rivers. Even though the city corporation area is 45.65 square Kilometres, The total city area covers 150.57 square kilometres (58.14 sq mi), and Khulna District covers 4,394.46 square kilometres (1,696.71 sq mi). Khulna is south of Jessore and Narail District, east of Satkhira District, west of Bagerhat and north of the Bay of Bengal. It is part of the Ganges Delta, the world's largest river delta. Sundarbans, the world's largest mangrove forest, is in the southern part of the delta. Tidal-flat ecosystems are adjacent to the city. Khulna is in the northern part of the district, and the Mayur River is the western boundary of its metropolitan area.

Khulna is Bangladesh's third-largest economic center. North of the Port of Mongla, it has a variety of industries. Major sectors are jute, chemicals, fish and seafood packaging, food processing, sugar milling, power generation and shipbuilding. The Khulna Chamber of Commerce and Industry (KCCI) regulates commerce through its Licensed Measurers' Department (LMD) and certification, attestation, and publicity departments. The region has an Export Processing Zone, attracting foreign investment. The city is home to branch offices of several national companies, including M. M. Ispahani Limited, BEXIMCO, James Finlay Bangladesh, Summit Power and the Abul Khair Group. Khulna's largest companies include Khulna Shipyard, Bangladesh Cable Shilpa Limited, Bangladesh Oxygen, Platinum Jubilee Mills, Star Jute Mills, and the Khulna Oxygen Company.