Are you sure that bypassing NDLS during the morning rush will be possible? I mean, only one train skips NDLS[DEE-YPR Duronto; but that skips it during non-congested time]. It'll be literally impossible for the train to bypass NDLS and go to NZM. You could try a reversal at Patel nagar and then make it go to NZM, like Ajmer Intercity does, but that will take time. Better to terminate it at DEE.