The Advance Reservation Period (ARP) of the Tatkal scheme is one day, excluding the date of departure from the train originating station. A maximum of four passengers per PNR can be booked for Tatkal e-tickets.
• Once the Ticket Reservation page opens, check whether the Train and Station’s name, Date of journey, Class, Quota, Boarding Point, etc. visible on the top of the page match your requirements.
• Enter the name, age, sex, and berth preference of the passenger(s). The maximum length of the name should be limited to 15 characters.
• Senior citizen concessions are not allowed for the Tatkal Quota
• The booking for Tatkal Non-AC opens at 11:00 AM on the IRCTC Authorised Partner platform and opens at 11:50 AM on the SmartBuy platform.
• The booking for Tatkal AC opens at 10:00 AM on the IRCTC Authorised Partner platform and opens at 10:50 AM on the SmartBuy platform.
For more details, you can also refer to
http://contents.irctc.co.in/en/TatkalBooking.html