Kalchini Block lies between 26⁰16' & 27⁰0' north latitude and 84⁰4' & 89⁰53' east longitude Covering an area of 892.57 Sq. Km. and population of 2,79,684 souls, as per Census-2011. The name Kalchini is emblematic with different hearsay stories & significances, the name Kalchini is derived from the river Kal-Jani, which is tagged after the rare herbal plant. Kalchini ranged from Tarai of Dooars, foothills at Raimatang & Buxa Fort, and beneath the hills ridges & deep valleys of the lower Himalayan belt along the Lepchakha, Chunabhatti & Adma. The tarai portion of Kalchini is low-lying belt, traversed by numerous river & streams rushing down from the hills of Bhutan and by the upland ridges which mark its courses. One of the wealth of Kalchini Block is Tea Garden and this Block consists of beauties of 21 Tea Gardens. This Block’s 70.63% area is in Forests, 20.43% area is in Tea Gardens and rest 20.43% is in revenue mouzas. Kalchini Block bordered by Bhutan in the North, Alipurduar–II & Kumargram Block bordering the East, Southern portion is bordered by Alipurduar Municipality & Alipurduar –I Block in the West, Madarihat Block & Toorsa River. With diverse ethnic culture of different communities like Mech, Garo, Rava, Dukpas, Adivasi, Bengali and Nepalies. In the year 2013 Kalchini Block has been declared as Minority Concentrated Block (MCB).