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
Geography of West Bengal at places. West Bengal stands third in the country in terms of mineral production. The state contributes about one-fifth to the total production of minerals in the country. Coal constitutes 99% of the minerals extracted in West Bengal; fireclay, china clay, limestone, copper, iron, wolfram, manganese and dolomite are mined in small quantities. There are good possibilities of obtaining mineral oil and natural gas in the areas near the Bay of Bengal, in Purba Medinipur, Sundarbans, South 24 Parganas and North Bengal plains. Research is ongoing in various places to locate natural gas. West Bengal is the third largest state