If you urgently want to go Agra from Jaipur in mid day, after shatabdi its AII SDAH only at 3PM in which you can find seats at the very same day of travel....Just book a SL/3A ticket before 08:55 AM if you want your seat to be confirmed in AII quota or there is another chance if you book till 10:55 AM(JP QUOTA) in any class and any no.of waiting list mentioned in the booking area....any no.means it can be upto 500-600 in SL for peak season....then also it will be confirmed at the time of chart preparation.
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Just...
more... take a WL ticket before the mentioned time and be assured of your seat...it will be there with you surely.
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My experience:::--
***WL388 SL confirmed same day.
***WL94 3A confirmed same day.
WL to CNF ratio::100%(365days)