Two planned townships in the greater Kolkata region are Bidhannagar, also known as Salt Lake City and located north-east of the city; and Rajarhat, also called New Town and located east of Bidhannagar.[1][75] In the 2000s, Sector V in Bidhannagar developed into a business hub for information technology and telecommunication companies.[76][77] Both Bidhannagar and New Town are situated outside the Kolkata Municipal Corporation limits, in their own municipalities.[75]