I think while speeding up, RB instead of speeding up 17230 it speeded up 17229. 17230 SC TEL madya chuste nijamgane almost 50 min speed up cheyochu. Once when I boarded 17230,train arrived at SC 25 min late and departed 30 min late. By the time it reached PGRL, it was almost on time. He gave 2 goods crossings that day and then it arrived on time at GNT. It's not that 17230 gets good priority, there is so much clearance for the train.