Sarojaninagar, also spelled Sarojini Nagar, is a community development block in Lucknow district, Uttar Pradesh, India. It is part of the tehsil of Lucknow and it includes 90 villages. As of 2011, its population was 224,045, in 40,923 households. Sarojaninagar is also the name of two wards of Lucknow, together making up 32 mohallas of the city.