Birwakalkali is a village in Kochadhamin tehsil in district of Kishanganj, Bihar, India. As per the data provided by Census of India in 2011, total population of Birwakalkali was 660 which includes 347 males and 313 females. Birwakalkali covers 121.77 ha area. Pincode of Birwakalkali is 855115.