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
Healthcare in West Bengal with population 20 millions or more as of 2011 national census were considered as major states for this table). These data are based on Sample Registration System of Office of the Registrar General and Census Commissioner, India. Healthcare in West Bengal Healthcare in West Bengal features a universal health care system run by the state government. The Constitution of India charges every state with "raising of the level of nutrition and the standard of living of its people and the improvement of public health as among its primary duties". Ministry of Health & Family Welfare of the Government of West