Jotnasir is a village in Bansihari tehsil in district of Dakshin Dinajpur, West Bengal, India. As per the data provided by Census of India in 2011, total population of Jotnasir was 245 which includes 126 males and 119 females. Jotnasir covers 60.9 ha area. Pincode of Jotnasir is 733246.