Once Birnagar was a lag-behind village teeming with ditches, ponds, pools and cultivable lands, In spite of all that, a vast area of the village attracted all since the 18th century. The area of the land from the Churni, Bhagirati and Ichhamati at the West to the present railway track and Ranaghat – Berhampore Road is the impact of several small, yet significant municipal and panchayat areas including Birnagar. With the doyen of industrial colonization of the British rule slums began coming up one after another around and in the vicinity of the town and huts with tiled roofs were built therein which now comes within the municipal periphery (Ward numbers 1 to 14).