Choto Lanku is a village in Umrangso tehsil in district of Dima Hasao, Assam, India. As per the data provided by Census of India in 2011, total population of Choto Lanku was 171 which includes 90 males and 81 females. Choto Lanku covers 10 ha area. Pincode of Choto Lanku is N/A.