Tatkal booking for Indian Railways generally starts one day before the date of journey , with different opening times for AC and non-AC classes.

Tatkal start time (standard rule)

For most trains at present:

  • AC classes (2A, 3A, CC, EC) : Tatkal booking starts at 10:00 AM on the previous day of the journey (not counting the day of travel).
  • Non-AC / Sleeper (SL, 2S) : Tatkal booking starts at 11:00 AM on the previous day of the journey.
  • This “one day before” is calculated from the train’s origin station , not your boarding station, so the date can differ if you join en route.

So if the train departs from its origin on 10th , Tatkal will usually open on 9th :

  • AC: 10:00 AM on 9th
  • Sleeper/non-AC: 11:00 AM on 9th

Recent changes and new rules

  • From July 2025 , Aadhaar-linked IRCTC account and OTP verification became mandatory for online Tatkal bookings, and agents are blocked from Tatkal for the first 30 minutes (10:00–10:30 AM for AC, 11:00–11:30 AM for non-AC).
  • These changes do not shift the core Tatkal opening time (10 AM / 11 AM), but they affect who can book in the first half hour and how (Aadhaar + OTP).

Forum-style quick tips

“Login just a couple of minutes before tatkal opens (around 9:58 AM for AC, 10:58 AM for sleeper), have all passenger details ready, and avoid refreshing during those crucial seconds.”

Useful practical points:

  • Log in 2–5 minutes before the window (e.g., 9:55–9:58 AM for AC).
  • Pre-save passenger details in your profile so you only choose from a list when Tatkal opens.
  • Use fast payment options (UPI / net banking) instead of slow card flows.
  • Make sure your Aadhaar-linked mobile number is active to receive OTP instantly, otherwise the payment step can fail.

“Latest news” & trending angle

  • As of early 2026 , bigger booking-policy changes (like Aadhaar-only booking on the first day of general reservation, extended booking windows etc.) mainly affect advance/general reservations , while Tatkal timing itself stays at 10:00 AM / 11:00 AM one day before journey.
  • Discussions on Indian Railways forums and Reddit still describe Tatkal as a “one‑minute window race” , so people rely heavily on pre-filled data and fast internet to beat the rush.

Bottom note: Information gathered from public forums or data available on the internet and portrayed here.