Sub section 1 in Section 66 of MV Act 1988 stipulates the requirement of proper permits for vehicles plying on routes. However in subsection 3 of the same Sec 66 some cases have been marked out where the requirement of permit as per subsection 1 of sec 66 can be exemted. Now the buses of Transport Undertakings are operated under directives of the state govt. So pl suggest whether by subsection 3 (f) or Subsection 3(n) the STU buses can exempted from the requirement of permts