Sampark Kranti means it will just halt or touch or sampark the states it passes through and halts at all major stns for which state it is run. For e.g. 12908 Maharashtra Sampark Kranti Exp. halts at Kota(Rajasthan), Vadodara(Gujarat) and major stations of Maharashtra(i.e. Borivali and BDTS). Hope you got the idea.
Facilities provided are the same as for normal SF trains.