47 ... Failure to use and develop the land in conformity with the development plan 48 ... Erection of building or change in use of land without permission 49 ... Failure to apply for permission and get permission 56 (5) Power to require the removal of unauthorised development 57 ... Power to stop the unauthorised development 62 ... Failure to comply to pay development charges 106 ... Obstruction to the exercise of the power of entry by the Government servants or the servants of the planning authorities