If such a replacement is done, for example, in the 50 Rajdhani trains, officials said, it will create around 14,400 additional berths for AC-III passengers.
Prima facie it appears that fractured railway track is the cause of accident as per local assessment.
The railways was not intimated about a Dussehra event along the tracks that led to the deaths of at least 61 people in Amritsar.
He said four weeks have been given to submit the report to find out who was at fault.