If only changes in rails from 52kg to 60kg will make section to increase speeds then why not trains run with such spreed in UBL GTL stretch ?They need that such control also na in that section now due to some bad controlling they can't run trains on good speeds even they have 60kg laid long back so my only concern is railways should not say change in 60kg makes speeds more their are others things to upgrade for increase in speeds and some of them I got info from u only when we discussed about GDG HG section signaling and speed..