Hooghly district is one of the districts of the state of West Bengal in India. It can alternatively be spelt Hoogli or Hugli. The district is named after the Hooghly River. The headquarters of the district are at Hooghly-Chinsura . There are four subdivisions: Chinsura Sadar, Serampore, Chandannagar, and Arambag. The district of Hooghly derived its name from the town of Hooghly on the west bank of the Hooghly River about 40 km north of Kolkata. This town was a river port in the fifteenth century. The district has thousands of years of rich heritage in the form of the great Bengali kingdom of Bhurshut. The first European to reach this area was the Portuguese sailor Vasco-Da-Gama. In 1536 Portuguese traders obtained a permit from Sultan Mahmud Shah to trade in this area. In those days the Hooghly River was the main route for transportation and Hooghly served as an excellent trading port.