Actually if they need to run trains above 130kmph then trains must be fully AC.
So long distance trains must be fully Air conditioned.
There is absolutely no impact on 3AC, 2nd AC...
more... and 1st AC Class but for Sleeper class passengers, they should increase the fare by 50% and convert those into Economy coaches.
For General Class, fare can be increased to double but coaches should be UR AC Coach.
This will be required for long distance running trains.