How to get DTCP approval in Tamil Nadu 2023?

Building Approval Process What is Single Window Portal in Tamilnadu ?

Is it mandatory to have sub division plan approval for the land for construction of building or even of selling it ? I think in Tamilnadu, the

building permission indore The Tamil Nadu government has granted power to local bodies, except in Chennai, to approve larger residential buildings

building permission certificate download REGULARISATION OF UNAPPROVED PLOTS & LAYOUTS To file the Application, select the appropriate agency CMDA or DTCP in whose jurisdiction the plot or layout