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
Belur, West Bengal Howrah Municipal Corporation after the merger of the 2 municipalities. The State Highway 6 (West Bengal)/ Grand Trunk Road passes through Belur. Belur is linked to Howrah via Belur railway station. Belur, West Bengal Belur is a neighbourhood of Howrah, located in Howrah district, West Bengal, India, on the west bank of the Hooghly River. The area is best known for Belur Math, a religious monastery containing a complex of temples. Belur Math is famous for being the headquarters of the Ramakrishna Math, a monastic order, as well as that of the related Ramakrishna Mission, both founded by Swami Vivekananda.