Corporation Bank → Union Bank of India: what happened to the IFSC codes

Corporation Bank merged into Union Bank of India on 2020-04-01. Our archive of every release of the RBI branch list since February 2016 holds 2,528 Corporation Bank IFSC codes. For 2,211 of them (87%) we can name the Union Bank of India code that replaced it and show the evidence. For the other 317 we do not name one, because nothing we hold ties them to a single live branch — and we do not guess.

Merged into

Union Bank of India

Merger date

2020-04-01

Old codes on record

2,528

Last release carrying most of them

release v2.0.1, 2021-09-15

First release without them

release v2.0.2, 2021-11-17

New code named here

2,211 of 2,528

When the old codes left the RBI list

The merger took effect on 2020-04-01, but that is not the day the old codes stopped appearing in the RBI branch list. 2,514 of the Corporation Bank codes were still in the list in release v2.0.1, published 2021-09-15 — 17 months after the merger. They are absent from release v2.0.2 (2021-11-17) onward. The other 8 codes left the list in other releases.

6 codes had already left the list by the merger date, so their withdrawal was not the merger itself.

The date a bank actually switched its old codes off is usually different again, and for most mergers it was announced by the bank, not the RBI. Merger dates against switch-off dates, with sources.

How we know which new code replaced an old one

• 2,210 codes from a mapping file shipped with the dataset in Razorpay release 1.5.7 (map_1.5.7_corp-ubin.csv), which pairs old and new codes directly.
• 1 code by an exact address match: the address on the old record is, character for character, the address of a live Union Bank of India branch.

Where none of these holds, we name no replacement. How we decide a replacement. Confirm any replacement code with your bank before you send money.

By state

Old code to new code

Every Corporation Bank code for which we name a replacement, by state. Open a state to see its codes. The new code links to that branch's record.