Tran 16518/16517 Rake position is not known to Passengers till last minute ie till the arival of train on platform.The dispaly of gklow sign boards for ac and non ac coaches are not displayed,.even if displayed also,not clear about AC coaches.In Kengeri also,we need to run all the length of train after arival of train on plat form.After the chart is prepared,when we call 139 bu sms we will know our berths.Can we expect from Railway to give rake position also on sms enquiry.