Yes that's the sequence followed until unusual happenings may force it getting overtaken much before CNB by HWH/BBS/PNBE Raj which is rare!!
Usually its kept ahead to HWH Raj till GMC where it's diverted on CPA-CNB Track for PF-7/8 & if PF isn't available HWH/BBS Raj keep moving via main line to reach PF 4/5 while it's detained & seek PF Clearance which usually is blocked by DLI bound Farakka Exp (PF8) & Freight (PF7)!!