Darjeeling is a city and a municipality in the Indian state of West Bengal. It is located in the Lesser Himalayas at an elevation of 2,000 metres . It is noted for its tea industry, its views of the world's third-highest mountain Kangchenjunga, and the Darjeeling Himalayan Railway, a UNESCO World Heritage Site. Darjeeling is the headquarters of the Darjeeling district which has a partially autonomous status called Gorkhaland Territorial Administration within the state of West Bengal. It is also a popular tourist destination in India.The recorded history of the town starts from the early 19th century when the colonial administration under the British Raj set up a sanatorium and a military depot in the region. Subsequently, extensive tea plantations were established in the region and tea growers developed hybrids of black tea and created new fermentation techniques.