It is very difficult to book Tatkal tickets online nowadays. Irctc site crashed during start of tatkal timing and Then Ticket unavailable.I have stopped trusting IRCTC for anything urgent and tatkal.Normal people will not able to book a single ticket in TATKAL. Worst Servers, Worst Speed, Waste of time in between the pages, particularly during payment transaction after completion of the payment only God will knows the Ticket is getting or not getting.