BSBS SF is controlled coz of stoppage ex GZB while both OT happens in CNB-TDL & together they get sequence as per schedule from or before GZB!!
02322/02149 PCOI-DDU slack is utilised to cover Freight Clearance delay ex PCOI (making non slack run in PCOI-DDU)!! HWH DRNTO crosses PCOI way beyond 2322/2149 after Freight Clearance Obstruction ex PRYJ & that's how sequence gets manipulated!! It becomes obstruction for MB/VS/LTT-PPTA which NCR clears off & that has nothing to do with ECR!!