Motor Vehicles Act, 1988
(2) A 49[ Regional Transport Authority, State Transport Authority or any prescribed authority referred to in sub-section (1) of section 66] shall not ordinarily refuse to grant an application for permit of any kind made at any time under this Act; the frequency of the service so provided without any increase in the number of vehicles ; Provided further that, - (i) in the case of variation, the termini shall not be altered and the distance covered by the variation shall not exceed twenty four kilometers ; (ii) in the case of extension, the distance covered by extension shall not exceed twenty four kilometers from the termini, & any such variation or extension within such limits shall be made only after the transport authority is satisfied that such variation will serve the convenience of the public and that it is not expedient to grant a separate permit in respect of the original route as so varied or extended or any part thereof. (3) A 52[Regional Transport Authority, State Transport Authority or any prescribed authority referred to in sub-section (1) of section 66] may, before such date as may be specified by it in this behalf, replace any permit granted by it before the said date by a fresh permit conforming to the provisions of section 72 or section 74 or section 76 or section 79, as the case may be, and the fresh permit shall be valid for the same route or routes or the same area for which the replaced permit was valid.