Tourism in West Bengal is in the South Asia region of Bengal, consisting of West Bengal and its neighbouring country of Bangladesh. It is the world's largest delta, and empties into the Bay of Bengal. It is one of the most fertile regions in the world, thus earning the nickname "The Green Delta". It stretches from the Hooghly River on the west to the Meghna River on the east. It is approximately across at the Bay of Bengal. Kolkata and Haldia are the principal Indian seaports on the delta. The Acharya Jagadish Chandra Bose Indian Botanic Garden or Calcutta Botanical Garden (previously known as
Hinduism in West Bengal that crept into the Hindu society during the Middle Ages. But they also played an important role in the resurgence of Hindu nationalism in Bengal. This inherent Hindu identity was the chief factor in Bengali Hindu Homeland Movement which successfully resisted the plan to create a United Bengal and campaigned for the establishing a separate state of West Bengal in India on the eve of Partition of India in 1947. The language of the Hindus in West Bengal is Bengali. A large number of Hindu religious texts like biographies of Chaitanya Mahaprabhu, Mangal-kavyas, Bratakathas and Panchalis as well as dharmik