Siliguri [pronunciation] is a metropolitan city which spans areas of the Darjeeling and Jalpaiguri districts in the Indian state of West Bengal. Known as the Gateway to Northeast India, Siliguri is popular for three T's -tea, timber and tourism. It is located on the banks of the Mahananda River at the foothills of the Himalayas. Siliguri is the third largest urban agglomeration in West Bengal, after Kolkata and Asansol. It lies 35 kilometres away from its twin city, Jalpaiguri. The merging of the two cities make them the largest metropolis of the region.