the person is asking about the extensions of current trains to other places which is difficult as per his mentioned timings to maintain and clean these coaches at the end points. and if extended IR will think these as new trains and other proposals will be ignored. and the current Starting Pints of this trains will be pushed into RLWL or PQWL and getting seats will be difficult. Already those trains are Jam packed from the starting points. If extended the current stations will not get any chance to enter into these trains. so i am suggesting him to start new services instead of extending current services.