West Bengal
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West Bengal, state of India, located in the eastern part of the country. It is bounded to the north by the state of Sikkim and the country of Bhutan, to the northeast by the state of Assam, to the east by the country of Bangladesh, to the south by the Bay of Bengal, to the southwest by the state of Odisha, to the west by the states of Jharkhand and Bihar, and to the northwest by the country of Nepal.
West Bengal has a peculiar configuration; its breadth varies from 200 miles (320 km) at one point to hardly 10 miles (16 km) at another. Its roughly 1,350-mile (2,200-km) frontier with Bangladesh, neither natural nor well defined, is of strategic importance. Although in area West Bengal ranks as one of the smaller states of India, it is one of the largest in population. The capital is Kolkata (Calcutta). Area 34,267 square miles (88,752 square km). Pop. (2011) 91,347,736.
Land
Relief and drainage
West Bengal may be broadly divided into two natural geographic divisions—the Gangetic Plain in the south and the sub-Himalayan and Himalayan area in the north. The Gangetic Plain contains fertile alluvial soil deposited by the Ganges (Ganga) River and its tributaries and distributaries. It also features numerous marshes and shallow lakes formed out of dead river courses. Indeed, the Ganges, which now runs through the narrow middle section of the state before entering Bangladesh, has been moving steadily eastward for centuries; only a small amount of its water now goes to the sea via the western distributaries, of which the principal one is the Hugli (Hooghly). The state capital, Kolkata, is situated on the Hugli in the southern portion of West Bengal. Another important river, the Damodar, joins the Hugli southwest of Kolkata. The elevation of the plain increases slowly toward the west; the rise is most marked near the Chota Nagpur plateau of neighbouring Jharkhand.
The sub-Himalayan tract, known as the West Bengal Duars, or Western Duars, is a part of the Tarai lowland belt between the Himalayas and the plain. Once infested with malaria, the area is now well drained and cultivated. Some of the finest tea plantations of India are situated there. North of the Duars, the Himalayan mountain ranges rise abruptly along the northern boundary of the state. Mount Kanchenjunga, actually located in adjacent Sikkim, dominates the landscape of the area, particularly in Darjiling (Darjeeling). On a clear day, Mount Everest also can be seen in the distance.
Climate
West Bengal’s climate is transitional between tropical wet-dry in the southern portions and humid subtropical in the north. Throughout West Bengal there is a pronounced seasonal disparity in rainfall. For example, Kolkata averages about 64 inches (1,625 mm) per year, of which an average of 13 inches (330 mm) falls in August and less than 1 inch (25 mm) in December. The state also is subject to considerable variability from year to year. In the sub-Himalayan region, rainfall is considerably greater.
The year may be broadly divided into three marked seasons—the hot and dry season (March to early June), with dry sultry days and frequent thunderstorms; the hot and wet season (mid-June to September), when rain-bearing monsoon winds blow from the southwest; and the cold (cool) season (October to February), when days are dry and clear and stable atmospheric conditions prevail. Average high temperatures at Kolkata range from about 80 °F (27 °C) in December and January to nearly 100 °F (38 °C) in April and May.
Plant and animal life
Forests occupy more than one-tenth of the total land area of the state, and the region as a whole has a rich and varied plant life. In the sub-Himalayan plains the principal forest trees include sal (Shorea robusta) and shisham, or Indian rosewood (Dalbergia sissoo); the forests are interspersed with reeds and tall grasses. On the Himalayan heights vegetation varies according to the elevation, with coniferous belts occurring at higher levels. The delta of the Hugli constitutes the western end of the dense coastal mangrove forest called the Sundarbans. A large portion of that unreclaimed and sparsely populated area bordering Bangladesh and the Bay of Bengal has been set aside as a national park and also (along with the portion in Bangladesh) as a UNESCO World Heritage site (designated 1987).
The forests are inhabited by tigers (including the majestic but endangered Bengal tiger),leopards, elephants, gaurs (wild cattle), and rhinoceroses, as well as by other animals of the Indian plain, large and small. Reptiles and birds include the same species as are common throughout the Indian subcontinent. In addition to the Sundarbans park, the state has several other protected natural areas, including Jaldapara Wildlife Sanctuary and a tiger reserve.
People
The majority of West Bengal’s people live in rural villages. Of those living in urban areas, more than half reside in greater Kolkata.
Of the different religions, Hinduism claims the adherence of more than three-fourths of the population. Most of the remainder is Muslim. Throughout the state, Buddhists, Christians, Jains, and Sikhs constitute small minority communities.
Bengali, the main language of the state, is spoken by much of the population. Other languages include Hindi, Santali, Urdu (primarily the language of Muslims), and Nepali (spoken largely in the area of Darjiling). A small number of people speak Kurukh, the language of the Oraon indigenous group. English, together with Bengali, is the language of administration, and English and Hindi serve as lingua francas at the national level.