Tatkal booking for all the trains, opens at 10 am, on the previous day of journey.(From July 10, 2012). for train leaving on 6th, Tatkal Booking will Commence at 10 AM for AC Classes on 5th and at 11 AM for NON-AC Classes on 5th. Tatkal booking opens at 10 AM for AC Classes and 11 AM for NON-AC Classes on One days in advance actual date of journey excluding date of journey w.e.f.
on 3rd, and reaches the desired boarding station on 4th, the Tatkal booking will start on 2nd and not 3rd. However, the day of journey is defined as the day of chart preparation. for a journey on 3rd, bookings would open on 2nd. Tatkal Booking starts one day in advance excluding the day of journey e.g.From Indian Railways webpage Tatkal scheme Non-utilised Tatkal tickets are released to wait-listed passengers. Tatkal reservation facility has been provided in Sleeper Class, Air-conditioned Chair Class, 3-AC & 2-AC classes in almost all Mail/Express trains including special trains. These tickets can be booked even on the internet. There is no separate Tatkal train defined, some seats on regular trains are marked for Tatkal reservation. Tatkal reservation scheme is offered by Indian Railways to meet the urgent requirement of the passengers who plan their journey at short notice. Tatkal is a Hindi word meaning At once or immediately. Overview of Indian Railways Tatkal Reservation Scheme