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What are the two major physical regions of West Bengal?

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West Bengal is broadly divided into two natural geographic regions:

  • The Gangetic Plain: Located in the south, this region consists of fertile alluvial soil deposited by the Ganges (Ganga) River and its various tributaries and distributaries. It is characterized by numerous marshes and shallow lakes.1
  • The Sub-Himalayan and Himalayan area: Situated in the north, this region includes the West Bengal Duars—a lowland belt known for its tea plantations—and the Himalayan mountain ranges, which rise abruptly along the state's northern boundary.1