Waitlist against the Tatkal quota (older PNRs show CKWL). Tatkal tickets are booked at a premium a day before travel and cancelled confirmed Tatkal tickets get no refund — so almost nobody cancels, and TQWL barely moves. During charting, GNWL is also cleared into vacant Tatkal berths before TQWL.
A still-waitlisted Tatkal e-ticket is auto-cancelled at charting and refunded minus clerkage (the Tatkal charge component is part of the refunded fare only when the ticket never confirmed).
Also written or searched as: TQWL meaning · TQWL full form · TQWL confirmation · CKWL · tatkal waiting