Kolkata was once the capital metropolis of British India and in addition the Gateway to India till 1912. It is a serious commercial city consisting of huge industrial plants and corporate homes. The major sights are Bono Bini Temple, Mangrove Interpretation Center and turtle venture. In the Sajneykhali watch tower you will note the Mangrove interpretation center, Crocodile farm, Turtle germination and Bono Bibi Mandir. You'll reach the jungle after 1.5 hours and arrive at Sajneykhali Watch Tower where you're going to get your permits to enter the jungle and get your information assigned by the forest department. Three and Laketown escort service half hours of drive to Godkhali, the final street point in Mainland India. Sundarban is about three hours by land and then one other 1& 1/2 hours boat ride to the closest watchtower in the buffer area of the jungle.