Yes LHB rakes are underutilized when YPR HWH can do it in 29 hrs then Chennai HWH in 24 hrs and sc HWH in 23 hrs. Yes should do away with zonal system for maintainance and have maintainance schedules according to demand based days. This can be done if we have more outlines at tier 2 cities so that trains leave metro cities on Friday halt for Saturday and leave on Sunday evening which I'll get 100% occupancy on both sides.