12621 — Tamil Nadu Express
Chennai Central (MAS) → New Delhi (NDLS) · 33h 30m
Book today for journeys up to
Wed, 27 May, 2026
Advance booking window: 60 days from origin departure date
Train No.
12621
Duration
33h 30m
Runs on
Daily
Calculate Booking Date for 12621
Enter your journey date to find when IRCTC booking opens
Frequently Asked Questions — 12621 Tamil Nadu Express
When does IRCTC booking open for 12621 Tamil Nadu Express?+
IRCTC opens advance booking 60 days before the journey date. Today (Sat, 28 Mar, 2026) you can book Tamil Nadu Express (12621) for journeys up to Wed, 27 May, 2026.
What is the Tatkal booking date for 12621?+
Tatkal booking for Tamil Nadu Express opens 1 day before departure — at 10:00 AM for AC classes and 11:00 AM for Sleeper/2S class.
What is the route of 12621 Tamil Nadu Express?+
Tamil Nadu Express (Train No. 12621) runs from Chennai Central (MAS) to New Delhi (NDLS). Approximate journey duration is 33h 30m. It runs on: Daily.
How many days in advance can I book 12621?+
You can book Tamil Nadu Express up to 60 days in advance from the train's origin departure date. Currently, IRCTC allows booking up to Wed, 27 May, 2026.