Vasai-Virar is an agglomeration of four previously governed municipal councils: Vasai (Bassein), Virar, Nallasopara and Navghar-Manikpur, as well as a few towns to the East and West of the urban area. It lies in the Konkan division of Maharashtra, India.The twin city of Vasai-Virar is a part of the Mumbai Metropolitan Region (MMR) and Mira-Bhayander, Vasai-Virar Police Commissionerate.