Such trials really don't matter , even NER did trial at 120 KMPH with 12 LHB coaches ( in 2017) , but still no improvement on that front too. They have huge infrastructure gaps.
NR , NER and ECR (North of Ganga) must learn from NCR. In NCR SF skip stations with quite big yard at high speed whereas in the zones mentioned trains crawl in the yard , for Lucknow yard important trains take around 15 minutes to cover btw Dilkusha - LKO ( 4 KMs) and Alamnagar - LKO (...
more... 4 KMs).
LKO yard remodelling is pending since 2012 , now just imagine how serious the zone and RB are on infrastructure project.