Economy of West Bengal Parks of India) earth stations in Kolkata, Durgapur, Kharagpur, Haldia and siliguri. Digha has been selected as the cable landing station for the submarine cable laying project connecting India and South East Asia. BSNL has an optical fiber network of 15000 km route in West Bengal. Reliance group's Jio Infocomm has laid 4500 km of optical fiber network in the state for its 4G network. Under National Optic Fibre Network (NOFN) mission, optical fibre cable will be laid in 341 blocks covering most of the gram panchayats in West Bengal. Spread over 2640 acres at Dumdum in Kolkata, the largest
Tourism in West Bengal which is 13.38% of the state's geographical area, compared to the national average of 21.02%. Part of the world's largest mangrove forest, the Sundarbans, is located in southern West Bengal. The southern part of West Bengal can be divided into two regions: the Gangetic plain and the littoral mangrove forests of the Sundarbans. The coastal region of Purba Medinipur exhibits coastal vegetation. A notable tree from the Sundarbans is the ubiquitous "sundari" ("Heritiera fomes"), from which the forest gets its name. The distribution of vegetation in northern West Bengal is dictated by elevation and precipitation. For example, the foothills of