6th full ac train means?
Thrus and Sunday ko problem hogi as rajdhani and Duronto Express too will be trailing AC Express and as AC Exp will arrive NZM on Fri and Mon as u said,
Nizamuddin will have to handle two non-NR rajdhani type rakes i.e one of CR's AC Exp and other SCR's SC-NZM Duronto. ase me kuch to gadbad hogi hi.
Tuesday...
more... depart from LTT and wednesday arrival at NZM, there is absolute no problem as there is neither NR Rajdhani nor Duronto in down direction & on saturday ltt depart, there will just be MAS GR trailing AC Exp towards NZM
And in UP direction, wednesday, it will be trailed by just one train i.e MAS Rajdhani and on sunday by just SC Rajdhani