IRCTC ticket regret means canceling a confirmed train ticket before departure due to some reason. Learn how to regret online or offline, when to regret, and how much to pay as cancellation fee. ‘Regret’ in IRCTC simply refers to train seats being full. If a train is fully occupied and the waiting list is about to be completed the ‘Regret’ status appears. He said that even after Aadhaar being linked to IRCTC accounts, the near-instant regret status clearly casts serious doubt on illegal software-based activities. What Does Regret Mean in IRCTC? Have you encountered the pop-up “Regret” when booking train tickets in IRCTC? Booking train tickets through IRCTC becomes challenging when you encounter “Regret” status. The term “Regret” indicates that the request has not been confirmed for various reasons.