Jajnanagar is a village in Bolpur Sriniketan tehsil in district of Birbhum, West Bengal, India. As per the data provided by Census of India in 2011, total population of Jajnanagar was 2,542 which includes 1,330 males and 1,212 females. Jajnanagar covers 371.1 ha area. Pincode of Jajnanagar is 731240.