Political Geography
The Dooars region politically constitutes the plains of Darjeeling District, whole of Jalpaiguri District and upper region of Cooch Behar District in West Bengal and the districts of Dhubri, Kokrajhar, Barpeta, Goalpara and Bongaigaon in the Indian state of Assam.
Physical Geography
The altitude of Dooars area ranges from 90 m to 1750 m. There are innumerable streams and rivers flowing through these fertile plains from the mountains of Bhutan. In Assam the major rivers are Brahmaputra and Manas, and in northern West Bengal the major river is the Teesta besides many others like the Jaldhaka, Murti, Torsha, Sankosh, Dyna, Karatowa, Raidak, Kaljani among others.
Climate
Average rain fall of the area is about 3,500 mm. Monsoon generally starts from the middle of May and continues till the end of September. Winters are cold with foggy mornings and nights. Summer is mild and constitutes a very short period of the year.