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The geography of India describes the geographic features of India, a country in South Asia. India lies largely on the Indian Plate, the northern portion of the Indo-Australian Plate, whose continental crust forms the Indian subcontinent. The country is situated north of the equator between 8°4' and 37°6' north latitude and 68°7' and 97°25' east longitude. It is the seventh-largest country in the world, with a total area of 3,166,414 square kilometres (1,222,559 sq mi). India measures 3,214 km (1,997 mi) from north to south and 2,933 km (1,822 mi) from east to west. It has a land frontier of 15,200 km (9,445 mi) and a coastline of 7,517 km (4,671 mi).
On the south, India projects into and is bounded by the Indian Ocean – in particular, by the Arabian Sea on the southwest, the Laccadive Sea to the south, and the Bay of Bengal on the southeast. The Palk Strait and Gulf of Mannar separate India from Sri Lanka to its immediate southeast, and the Maldives are some 400 kilometres (250 mi) to the southwest. India's Andaman and Nicobar Islands, some 1,200 kilometres (750 mi) southeast of the mainland, share maritime borders with Burma, Thailand and Indonesia. Kanyakumari at 8°4′41″N and 77°32′28″E is the southernmost tip of the Indian mainland, while the southernmost point in India is Indira Point on Great Nicobar Island. India's territorial waters extend into the sea to a distance of 12 nautical miles (13.8 mi; 22.2 km) from the coast baseline.
The northern frontiers of India are defined largely by the Himalayan mountain range, where the country borders China, Bhutan, and Nepal. Its western border with Pakistan lies in the Punjab Plain and the Thar Desert. In the far northeast, the Chin Hills and Kachin Hills, deeply forested mountainous regions, separate India from Burma. On the east, its border with Bangladesh is largely defined by the Khasi Hills and Mizo Hills, and the watershed region of the Indo-Gangetic Plain. The Ganges is the longest river originating in India. The Ganges-Brahmaputra system occupies most of northern, central, and eastern India, while the Deccan Plateau occupies most of southern India. Kangchenjunga, on the border between Nepal and the Indian state of Sikkim, is the highest point in India at 8,598 m (28,209 ft) and the world's 3rd highest peak. Climate across India ranges from equatorial in the far south, to alpine in the upper reaches of the Himalayas.