Lol. Such a funny reason.. Haha.. :D that's illogical thing.. Its just to decongest ndls.. There are so many trains whose rakes are parked at sadarbazar/sabji mandi/sarai rohilla.. BTW its not rake parking its just decongesting.. Like shifting trains to anvt/nzm. :) but GT being a very important train they could have shifted Tamil Nadu express instead of GT.