came to settle here for better facilities which led to an increased population. Later in 1950 Siliguri achieved municipal status. Keeping in mind the importance of Siliguri, in 1951, the Assam rail link was established with newly made (1949) Meter gauge Siliguri Junction railway station. After few years in 1961 all these stations were connected with broad gauge New Jalpaiguri Junction railway station which later became the most important railway station in Northeast India. Due to tremendous growth, Siliguri is now far away from its past outlook, becoming the largest and fastest growing city in eastern India after Guwahati. The growth rate of Siliguri was 57.8% during 1971- 1981, considering this growth, Siliguri came under Integrated Urban Development Project program in 1981. Siliguri touched 46.83% of population growth rate in 1981–1991. A treaty between India and China for trade through Nathu La Pass, has expedited development and prospects of Siliguri as an international transportation and logistics hub. Later in 1994 Siliguri built a Municipal corporation which has been responsible for the civic infrastructure and administration of the city of Siliguri. Siliguri has now achieved the status of becoming the 3rd largest city in West Bengal, after Kolkata. Geography Location Siliguri located at the foothills of the eastern Himalayas at a location of . This city is spread over an area of 260 km2 within the Siliguri Corridor, also known as the Chicken's neck. The city is surrounded by dense forests towards north and lifeline of Siliguri, Mahananda River flows through the city thereby bisecting it into two-halves. Also Teesta river is not so far from the city. Siliguri has an average elevation of 122 metres (400 feet). As Siliguri is located in the Terai region, the soil is sandy in nature i.e. the ratio of sand and silt is much higher than clay. This region is very prone to earthquake as there are several fault lines nearby. The Siliguri subdivision is surrounded by Himalayan ranges towards north and towards south by the country Bangladesh, Uttar Dinajpur district of West Bengal and the Indian state of Bihar. On the east lies Jalpaiguri district and Kalimpong district and bounded on the west by the country of Nepal, thus strategically so important. Climate Siliguri falls under the humid subtropical climate (Cwa), when using the Köppen climate classification. Warm summer, cool winter and a severe monsoon defines Siliguri's climate. Temperature The average annual temperature