Bidhannagar, widely known as Salt Lake City or simply Salt Lake, is a planned city in the Kolkata metropolitan region of West Bengal, India. It was developed on reclaimed saltwater marshes east of Kolkata and named after Dr. Bidhan Chandra Roy, the physician, statesman, and former Chief Minister of West Bengal who played a central role in envisioning the project. Today it functions as one of the most important residential, administrative, educational, and information-technology centers in eastern India.
The city matters because it serves several roles at once. It is a major suburban municipality of Greater Kolkata, home to government offices, sports venues, hospitals, schools, and cultural institutions. It also includes Sector V, one of eastern India’s best-known IT and business districts, which transformed Bidhannagar into a major employment hub for software, business process services, and back-office operations.
Bidhannagar is also distinctive for its urban form. Unlike older parts of Kolkata that grew organically over centuries, Salt Lake was laid out in sectors with broad roads, blocks, parks, and planned civic spaces. Landmarks such as the Salt Lake Stadium, Nicco Park, Central Park, and the nearby science and convention facilities have made it familiar to residents across Bengal.
Although often treated as an extension of Kolkata, Bidhannagar has a character of its own: quieter residential neighborhoods, large institutional campuses, and a strong daily rhythm shaped by commuters, students, office workers, and families. Its story is closely tied to post-independence urban planning, wetland reclamation, and the eastward growth of metropolitan Kolkata.