Hi, I booked a tatkal ticket in Karnataka Express through IRCTC. Got WL 52, as it was booked at 10:08 am. Decided not to travel and didn't cancel it as Waiting was high and instead booked another ticket. Just 10 minutes before chart preparation status was WL 43. After chart preparation, it was confirmed with berth Number... :). Whole money went into vain. It is a big surprise for me as waiting 52 got confirmed in this season of rush....