Haldia is an industrial port city in Purba Medinipur district in the Indian state of West Bengal. It has a major river port and industrial belt located approximately 124 km (77 mi) southwest of Kolkata near the mouth of the Hooghly River, one of the distributaries of the Ganges. The Haldia Township is bordered by the Haldi River, an offshoot of the Ganges River. Haldia is a centre for petrochemical businesses, and is a major trade port for Kolkata.