Allahabad Bank Merged With Which Bank? Full 2020 Story

Short answer: Indian Bank. April 1, 2020. Allahabad Bank stopped existing as its own entity that day. If that's all you needed, you have it.

Here's the longer version, for anyone who wants it. Folding India's oldest joint-stock bank into Indian Bank wasn't a small move - it instantly created the country's seventh-largest public sector bank, measured by combined assets. Had an account with Allahabad Bank? You bank with Indian Bank now, whether you've noticed the switch yet or not. Branch stayed put, balance stayed the same, name over the door changed.

None of this happened in a vacuum. Delhi had a much bigger plan running in the background: shrink the number of public sector banks so the survivors are large enough to compete internationally and absorb the occasional bad-loan disaster without another taxpayer bailout. The rest of this piece covers which bank Allahabad Bank merged with in more detail, why regulators picked that particular pairing, what actually changed for customers, and where this fits in the wider run of Indian bank mergers.

Which Bank Did Allahabad Bank Merge With?

Indian Bank did the absorbing. Nirmala Sitharaman announced the decision on August 30, 2019. Squeeze ten public sector banks down into four bigger, better-capitalized ones - that was the goal, and Allahabad Bank, being the smaller of the two, went into Indian Bank rather than the reverse.

Why that particular pairing, though? Mostly geography. Chennai-headquartered Indian Bank had built decades of strength in South India. Allahabad Bank was doing its business up north and east. Put them together and you stop double-covering the same cities and start actually covering the country - something neither bank managed solo. Every pairing in the 2020 consolidation followed roughly this logic: match up footprints that fill each other's gaps, not just whichever banks happened to be nearby.

So there's your answer, plain: allahabad bank merged with which bank? Indian Bank. April 1, 2020. Done.

A Brief History of Allahabad Bank Before the Merger

Allahabad Bank wasn't some minor regional player that quietly disappeared. Founded in 1865, it had been running longer than almost any other bank still operating in India - which is a big part of why the 2020 merger stung for longtime customers and staff who'd banked there for generations.

• Founded in 1865 in Prayagraj (then known as Allahabad) by a group of European entrepreneurs, making it the oldest joint-stock bank in India still operating at the time of the merger.
• Rooted in the Swadeshi movement era, Allahabad Bank grew alongside India's early industrial and trading economy, financing agriculture, jute, and tea businesses in the eastern regions.
• Nationalized on July 19, 1969, along with 13 other major private banks, as the Indian government moved to bring large commercial banks under public ownership.
• Expanded through acquisition in 1989, taking over United Industrial Bank, a Kolkata-based bank established in 1940, adding roughly 145 branches to its network.
• By 2019, Allahabad Bank operated more than 3,200 branches, employed over 23,000 people, and held total assets north of ₹248,000 crore.

That's the scale we're talking about. So no, this wasn't a minor rebrand - it was the retirement of a 155-year-old name.

Timeline of the Indian Bank–Allahabad Bank Amalgamation

The merger didn't happen overnight. It unfolded in distinct stages across roughly 18 months, from announcement to full technical integration.

1. August 30, 2019 — Finance Minister Nirmala Sitharaman announces the consolidation of ten public sector banks into four anchor banks, with Allahabad Bank set to merge into Indian Bank.
2. Late 2019 – early 2020 — Boards of both banks formally approve the merger and begin working out valuation and share-swap terms.
3. March 4, 2020 — The Union Cabinet gives final approval to the amalgamation scheme.
4. March 5, 2020 — Public sector banks involved in the broader consolidation, including Indian Bank and Allahabad Bank, announce their official share swap ratios.
5. April 1, 2020 — The merger becomes legally effective. Allahabad Bank ceases to exist as a separate legal entity; all its branches, assets, and liabilities transfer to Indian Bank.
6. Through 2020 — Indian Bank begins the technical work of migrating Allahabad Bank's core banking system, customer records, and digital channels onto its own infrastructure.
7. February 15, 2021 — The combined core banking platform goes fully live. New IFSC codes take effect, and Allahabad Bank's mobile and net banking users are moved onto Indian Bank's indOASIS platform.

That final step is the one many customers remember best. It's when day-to-day banking details, not just the name on the branch, actually changed.

Share Swap Ratio and Shareholder Impact

For shareholders, mergers of this kind hinge on one critical number: the share swap ratio. This determines how many shares of the surviving bank (Indian Bank) an investor receives for each share they held in the bank being absorbed (Allahabad Bank).

The ratio reflected the relative valuations of the two banks at the time, based on independent valuer assessments. Several market analysts and financial publications noted that Allahabad Bank shareholders effectively saw a reduction in the value of their holdings once converted into Indian Bank stock. Much of that came down to Allahabad Bank carrying a heavier non-performing asset load going into the merger. Existing Allahabad Bank shares were delisted from stock exchanges once the swap was completed; only Indian Bank shares have traded under the combined entity since.

What Changed for Allahabad Bank Customers

If you banked with Allahabad Bank, the merger touched almost every part of your day-to-day banking experience. It didn't happen all at once, and none of it put your money at risk.

• IFSC codes changed. Every Allahabad Bank branch received a new IFSC code once the core banking migration completed on February 15, 2021. Customers needed the new code for NEFT, RTGS, and IMPS transfers, and for updating salary or auto-debit mandates.
• Mobile and net banking moved to indOASIS. Allahabad Bank's own digital banking apps were retired, and customers were migrated to Indian Bank's indOASIS mobile and internet banking platform.
• Cheque books remained valid temporarily. Old Allahabad Bank cheque books continued to work for roughly six months after the migration, giving customers a grace period to order new Indian Bank chequebooks.
• ATM cards and passbooks stayed functional during the transition, with Indian Bank gradually reissuing cards and passbooks under its own branding.
• Branch locations largely stayed the same. Most former Allahabad Bank branches simply became Indian Bank branches at the same physical address, minimizing disruption for in-person banking.
• Account numbers and balances carried over automatically. Customers didn't need to open new accounts or manually transfer funds.

How the Merger Reshaped India's Public Sector Banking

Allahabad Bank and Indian Bank weren't merging in isolation. Three other pairs of public sector banks combined on that same day, April 1, 2020, taking India from 27 public sector banks back in 2017 down to just 12. Why bother? Fewer banks, but each one with a stronger balance sheet, a bigger capital base, and enough scale to absorb a credit shock without running to the government for another bailout.

Together, the two banks brought a combined business of roughly ₹8.08 trillion, about $85 billion. That's nearly 1.9 times Indian Bank's standalone size before the deal. Over 6,000 branches, close to 4,800 ATMs, around 43,000 employees - the merged entity turned into one of the country's genuine heavyweights almost overnight.

Was it worth the disruption? The banking sector had just come out of a brutal stretch of bad-loan write-offs and fraud cases (Allahabad Bank had its own scandals in that mix), so the government's bet was that bigger, better-capitalized banks would be tougher to knock over next time.

When Bank Mergers Disrupt Payments, Businesses Look to Crypto Rails

Here's the part that gets less attention: bank mergers this size rarely go perfectly smoothly for the businesses sitting on the other end of those accounts. An IFSC code change can break an automated payment integration overnight, without warning. Core banking migrations sometimes mean transfers get held, settlement windows slip, or an account gets flagged for fresh KYC checks while records shuffle between systems. If you're an e-commerce merchant taking payments through a single bank account, even a few days of friction during something like the February 2021 migration can cost you real sales.

So it's not surprising that more businesses, particularly ones selling across borders, have started spreading their payment acceptance across more than one rail instead of trusting a single domestic bank account. That's where a crypto payment gateway like Plisio fits in - it lets merchants take Bitcoin, USDT, and dozens of other cryptocurrencies directly, settling on its own schedule rather than a bank's. Nobody's suggesting it replaces your core banking relationship. It just keeps working when a bank is mid-migration, which is a decent hedge against exactly the kind of headache this merger caused.

Conclusion

So, allahabad bank merged with which bank? Indian Bank, plain and simple. That single deal on April 1, 2020 closed out a 155-year run for one of India's oldest independent banks and, in the process, built the country's seventh-largest public sector lender. It wasn't quick - nearly two years passed between the August 2019 announcement and the February 2021 core banking migration that finally touched everyone's IFSC code, banking app, and share value.

For customers, the upshot was mostly continuity wearing a new name: same branches, same balances, just updated paperwork. But if you run a business and this kind of transition ever slowed down a payment or two, it's worth remembering that spreading your payment options - including crypto rails that don't care whose bank is migrating what that week - genuinely helps.

Marco Lucchetti

Marco Lucchetti is a senior content strategist and blockchain analyst at Plisio. With over 7 years of experience in cryptocurrency research, DeFi protocols, and payment technologies, Marco specializes in creating clear, data-driven content for a global crypto audience. His work focuses on transaction tracing, crypto compliance, and the future of blockchain infrastructure.