In short
RRB has moved the CEN 01/2026 CBT 1 at one Ongole centre (3 and 4 Nov) and one Nellore centre (3 Nov) to 5 November. Ongole candidates will now write at Tirupati.
RRB put out a special notice on 2 November 2026 for the Assistant Loco Pilot CBT 1 (CEN 01/2026). Two centres in Andhra Pradesh are affected, one in Ongole and one in Nellore. Every other centre runs as per schedule. The PDF is linked below.
Look at the TC code on your call letter. That's the quickest way to tell if this applies to you.
Ongole: National Council for the Church Social Action India (TC code 33430)
If your exam here was on 3 or 4 November, it's been moved to 5 November, and the centre has changed too. You'll now write at iON Digital Zone iDZ Zoo Park, Tirupati (TC code 9105). Ongole to Tirupati is a long trip, so plan your travel today and aim to reach a day early if you can.
If your exam at this centre was already on 5 November, nothing changes. You still go to Ongole.
Nellore: iON Digital Zone iDZ, Pottepalem Village (TC code 35626)
If your exam here was on 3 November, it's now on 5 November at the same centre. If yours is on 4 November, that stays as it is.
What to do next
RRB says it will send an SMS and email to everyone affected, on the mobile number and email ID you registered with. Keep an eye on both. It's also a good idea to log in to the call letter page again before you leave and download a fresh copy, so the date and centre printed on it match the new schedule.
Everything else is the same as before: carry the printed call letter and an original photo ID, and reach well before the reporting time.