First of all this mind your way to talk .what is the meaning of have par teervMarna.CR/WR have more train so the requirement of WAP7 is more in this CR/WR as compare to er ok .bat Karne Ka tarika sikho pahle see total train in er ,CR and WR the you get to know why WR want to make another loco shed. I know that u are feeling sad bcz in er has less wap7 as compare to WR/CR .but what can be do? It's depend upon train and mostly LHB train.get it.