India’s public-sector bank consolidations left millions of customers with cheque books, salary forms and vendor masters that still show retired bank names and IFSC prefixes. Payments then fail, bounce, or — worse — need recovery after a mismatched credit. This guide explains why mergers change IFSC, gives carefully labelled, commonly known successor-bank examples (not a fake branch-by-branch mapping table), and walks through how to find the current code for salary, rent and vendor updates.
New to the code itself? Read What is an IFSC Code? first. Before any high-value transfer, follow How to Verify an IFSC Code.
Table of Contents
Why mergers change IFSC
An IFSC identifies a specific bank branch for electronic payments. The first four characters are the bank code (for example SBIN, BARB, PUNB). When Bank A is amalgamated into Bank B:
- The legal entity and brand on statements change to the successor bank
- Branch systems migrate onto the survivor’s core banking platform over time
- Legacy IFSC prefixes may be retired, remapped, or accepted only during a transition window
- Account numbers sometimes stay the same; IFSC and MICR often need a refresh
- Physical stationery (cheques, passbooks) can lag months or years behind the live system
That is why a code that worked in 2018 can fail in 2026 even though “your branch is still on the same road.” The payment network cares about the current branch identity in the IFSC directory, not the logo printed on an old cheque leaf.
Known merger examples (public facts — not a mapping table)
Use this table only to know which successor bank to query. It is not a list of replacement IFSC strings for your branch.
| Absorbed bank (legacy) | Common legacy prefix people still quote | Successor bank (commonly known) | What to do |
|---|---|---|---|
| Vijaya Bank | VIJB… | Bank of Baroda | Get current BoB IFSC from app / BoB locator |
| Dena Bank | BKDN… | Bank of Baroda | Same — do not keep BKDN long-term |
| Oriental Bank of Commerce | ORBC… | Punjab National Bank | Confirm PNB IFSC for your branch |
| United Bank of India | UTBI… | Punjab National Bank | Confirm PNB IFSC; refresh HR/vendor files |
| Syndicate Bank | SYNB… | Canara Bank | Use Canara’s current branch IFSC |
| Andhra Bank / Corporation Bank | ANDB… / CORP… | Union Bank of India | Look up Union Bank IFSC officially |
| Allahabad Bank | ALLA… | Indian Bank | Refresh from Indian Bank app/passbook |
Private-sector consolidations and smaller amalgamation exercises also happen from time to time. The process is the same: identify the successor brand on your statement, then fetch a fresh IFSC — never invent a character-by-character conversion from the old code.
Signs you are using a legacy IFSC
- Net banking rejects the beneficiary with “invalid IFSC” or “branch closed / merged”
- Lookup tools show a different bank name than the one on your old cheque
- Salary or vendor NEFT returns with a failure reason mentioning IFSC / branch
- Your app shows Bank of Baroda / PNB / Canara / Union / Indian Bank, but the cheque still says Vijaya, Dena, OBC, United, Syndicate, Andhra, Corporation or Allahabad
- UPI still works (UPI ID path) while account+IFSC NEFT fails — classic stationery lag
How to find the successor IFSC (reliable process)
Step 1 — Start with your own bank’s digital channel
- Open the official mobile app or net banking of the successor bank.
- Go to Account summary / Account details / Branch details.
- Copy the 11-character IFSC exactly (watch 0 vs O).
- Screenshot the screen for HR or vendors.
Step 2 — Confirm on a second source
- Search the same code on IFSCNOW and match bank, branch and city.
- Or use the successor bank’s official branch locator (link from the bank’s homepage — avoid random ads).
- For audit trails, cross-check against RBI’s published IFSC / branch reference materials when needed.
Step 3 — If you only know the old branch name
- Note city, locality and old branch name from the passbook.
- Search the successor bank’s locator for that locality.
- If branches were consolidated, call the customer-care number on the bank’s site and ask which IFSC now serves your account number — do not guess a neighbouring branch.
Step 4 — Verify before saving beneficiaries
Follow the full workflow in verify IFSC before transfer. For new high-value payees, send a ₹1 IMPS or small NEFT test after the update.
Cheque book and passbook lag
Banks do not magically replace every cheque leaf the day a merger completes. Practical guidance:
| Document | Typical lag risk | Prefer instead |
|---|---|---|
| Old cheque book | High — may show absorbed bank name + old IFSC | App / latest passbook print |
| Pre-merger passbook | High if never updated | Ask branch for updated print or use app |
| Post-merger statement PDF | Low — usually current branding | Header / account info block |
| Mobile banking | Lowest for live IFSC | Account details screen |
If you still use cheques for deposits, ask the branch whether you need a new cheque book under the successor bank. For receiving money, share the IFSC from the app even if you hand someone an old cheque for the account number — and tell them which IFSC to type. More on locating codes on stationery: Find IFSC on cheque, passbook & app.
Salary, rent and vendor update checklist
For employees (salary account)
- ☐ Copy current IFSC + account number from the successor bank app
- ☐ Submit both to HR / payroll with a screenshot
- ☐ Confirm whether payroll uses NEFT, and which cut-off they follow (NEFT vs RTGS vs IMPS)
- ☐ After the next credit, verify the payer name and keep the success screenshot
- ☐ Update reimbursement / travel portals separately — they often store a second copy of bank details
For freelancers and businesses (receivables)
- ☐ Update invoice footers, email signatures and marketplace seller profiles
- ☐ Email key clients: old bank name → new bank name, new IFSC, same account number (if unchanged)
- ☐ Ask clients to edit the beneficiary rather than create a duplicate with the old IFSC still active
- ☐ Watch the first few NEFT credits closely for returns
For people who pay you (payers’ checklist)
- ☐ Delete or edit saved beneficiaries that still show VIJB / BKDN / ORBC / UTBI / SYNB / ANDB / CORP / ALLA-style codes when the account has moved
- ☐ Re-verify on IFSCNOW before the next large payment
- ☐ Prefer a small test transfer after any IFSC change
What happens on NEFT, RTGS, IMPS and UPI
- NEFT / RTGS / IMPS with account + IFSC: Most sensitive to legacy codes. Failures and returns show up here first.
- UPI to a UPI ID: Often keeps working because it does not depend on you typing IFSC. Still update account+IFSC details used for mandates, refunds or large bank transfers.
- Auto-pay / NACH / EMI mandates: Usually tied to account identifiers set up with the bank; if a mandate fails after merger communications, contact the biller and your branch — do not assume IFSC on an old form is the fix by itself.
If a payment already went wrong because of an outdated merger code, follow money sent to wrong IFSC — recovery steps with your UTR. For fraud unrelated to mergers, see digital banking security.
Common update mistakes to avoid
- Inventing a mapping: Changing only the first four letters and keeping the old branch suffix is not a safe formula.
- Picking any city branch: “PNB Mumbai Main” is not a substitute for your actual home branch IFSC.
- Trusting WhatsApp “updated IFSC lists”: Unofficial forward lists go stale and sometimes wrong.
- Updating IFSC but mistyping the account number: Always re-check both.
- Leaving old beneficiaries active: Finance teams should deactivate legacy payees to prevent accidental reuse.
- Ignoring MICR vs IFSC: MICR is for cheque clearing paths; electronic transfers need IFSC. See IFSC vs MICR vs SWIFT.
Frequently Asked Questions
Do bank mergers always change my IFSC?
Often for absorbed banks. Confirm from a post-merger official source rather than assuming the old cheque is fine.
Are Vijaya Bank and Dena Bank IFSC codes still usable?
Those banks amalgamated into Bank of Baroda. Treat legacy codes as outdated for long-term use; fetch the current BoB IFSC.
My cheque still shows the old bank name. Is that IFSC safe?
Not reliably. Prefer the mobile app or a recently updated passbook.
Will my salary bounce if HR has the old IFSC?
It can. Update payroll promptly with a screenshot from your bank app.
Where can I look up the new IFSC quickly?
Bank app, successor branch locator, RBI published lists, or IFSCNOW — then match branch details.
Can I convert an old IFSC with a simple formula?
No. Look up the living branch identity; do not invent substitutions.