Bidhannagar subdivision is an administrative subdivision of the North 24 Parganas district in the Indian state of West Bengal. After transferring Rajarhat-Gopalpur Municipality and Rajarhat (Community development block) to Bidhannagar subdivision, Bidhannagar subdivision's total area becomes 141.37 sq km (54.58 sq mi), population becomes 808,251 (2011 Census) and density becomes 5,700/sq km (15,000/sq mi).