* Distance is too large for a day time chaircar train like shatabdi which can give 70-72kmph avg speed on goven route (110kmph limit) with given stops and current scenario.
* Moreover Surat-NGP Shatabdi will not get enough paxs to justify its existence as there are no big cities enroute.
* More than 7:30-7:45 hrs journey is inconvenient for paxs for a Shatabdi train due to prolonged sitting and inconveniently early-departure or late-arrival time.