Kalyan is a city on the banks of Ulhas River in Thane district of Maharashtra state in Konkan division. It is governed by Kalyan-Dombivli Municipal Corporation. Kalyan is a subdivision of Thane district. Kalyan and its neighbouring township of Dombivli jointly form Kalyan-Dombivli Municipal Corporation, abbreviated as KDMC. It is a founding city of the Mumbai Metropolitan Region. Kalyan is the 7th biggest city in Maharashtra and 29th in India.