Chapter 1

The rat-infested room

In 1993, a Citibank high-flier named Aditya Puri walked away from a corner office in Malaysia to run a bank that did not yet exist, from a room where rats ate the computer wiring. This is the founding myth - and, unusually for founding myths, it is documented.

India's 1991 liberalisation had cracked banking open. The RBI issued fresh licences to a clutch of new private banks, and Housing Development Finance Corporation - the housing-finance giant run by Deepak Parekh - got in-principle approval to start one. HDFC Bank was incorporated in August 1994 and began operations in January 1995, its first full-service branch at Sandoz House in Worli inaugurated by then finance minister Manmohan Singh, according to the bank's recorded history and its own official timeline.

To run it, Parekh poached Puri, then Citibank's CEO in Malaysia and named among the top-50 emerging stars in Citi's global franchise by its chairman John Reed. Puri gave up his Citigroup stock options to take the job, as Rediff's account of his 26-year stint records. The first office, across the road in the Kamala Mills compound, was no corner suite: rats chewed through his computer cables three times.

The boring-bank doctrine

What Puri built next became a case study in restraint. While rivals chased market share in the mid-1990s, HDFC Bank refused unsecured lending until it had read the risk: it led with secured products and only began hawking credit cards in 2000, borrowing an American Express-style balance-transfer playbook, the Rediff account notes. The discipline earned it an early nickname it wore proudly - "the boring bank", because it served no surprises, pleasant or otherwise.

Underneath the boredom sat an early technology bet. NetBanking arrived in 1999, SMS banking in 2000, then mobile banking and the "Bank Aap Ki Muththi Mein" campaign that turned a phone into a branch - years before smartphone banking was an industry slogan. In July 2001 the bank listed its ADS on the New York Stock Exchange, and in 2008 it absorbed Centurion Bank of Punjab for ₹9,510 crore in what was then the largest acquisition in Indian financial services, per the bank's history.

When Lehman fell and Indian banks went back to their drawing boards, HDFC Bank did not have to. The boring bank had no drawing board to fix.- As recounted in Rediff's 2020 retrospective

By the time Puri handed over in 2020, the rat room in Kamala Mills had become India's most valuable bank - and the discipline of the founding years had become the bank's public identity. The next two chapters are about what that identity cost, and whom it cost.

The class of '94

Context first, because the room only makes sense inside it. In 1993-94, the Reserve Bank of India - acting on the Narasimham Committee's reforms after the 1991 balance-of-payments crisis - threw Indian banking open to private entrants for the first time in a generation. Licences went to a clutch of hopefuls: ICICI Bank, UTI Bank (later Axis), IndusInd, Global Trust Bank, and the housing-finance giant's offspring, HDFC Bank. The class of '94 would go on to define Indian private banking - and to define its scandals too: Global Trust Bank collapsed into a forced merger in 2004 after its books unravelled. Survival, in that cohort, was not guaranteed. The blue grid's eventual synonymy with safety was built precisely in the years when safety was not the fashion.

The parentage mattered. HDFC Ltd was founded in 1977 by H.T. Parekh as India's first specialist housing-finance company, an institution built on the then-radical idea that ordinary Indians could be trusted with long-term credit. By the 1990s, under his nephew Deepak Parekh, it was the most respected financial franchise in the country - the lender that had mortgaged middle India into its first homes. When the RBI offered bank licences, HDFC's application carried a credibility no startup could buy. The bank was incorporated in August 1994 as HDFC Ltd's subsidiary, and the parent held the reins for the next twenty-eight years - until, in a reversal history will find either poetic or ominous, the child swallowed the parent whole in 2023. Chapter 9 tells that story.

The man who gave up the options

The founding myth deserves its details, because the details are load-bearing. Puri was not a journeyman looking for a chair. He was Citibank's CEO in Malaysia, identified by Citi's own chairman John Reed as one of the bank's top-50 emerging stars worldwide - a fast-track man inside what was then the most powerful consumer bank on earth. The offer from Deepak Parekh meant abandoning that trajectory and, with it, his Citigroup stock options, as Rediff's 2020 retrospective records. He traded a global empire's fast lane for a rat-infested room in Kamala Mills, Worli, where the rodents chewed through his computer wiring three times. He stayed twenty-six years.

The temperament he brought explains the bank he built. Colleagues and chroniclers describe a no-nonsense, conservative operator with an allergy to surprises - a man who, Rediff noted with some affection, did not carry a mobile phone even while betting the bank on digital channels. The paradox is the point: the doctrine was technological audacity in service of financial caution. Surf every tech wave; take no credit risk you cannot see.

Secured first, cards later

The doctrine's first test came early. In the mid-1990s, rival new banks chased unsecured market share - personal loans, credit cards, the high-yield end of retail. Puri refused. With no credit bureaus and no personal credit histories in the country, he judged unsecured lending to be guesswork dressed as growth. HDFC Bank led with secured product lines, read the repayment behaviour of the emerging middle class for half a decade, and only entered credit cards in 2000 - borrowing a page from American Express's balance-transfer playbook to capture, in Rediff's phrase, "both the eyeballs and wallet share of some of the best customers" in a single swoop. The bank that looked slow in 1996 looked like the only adult in the room by 2001, when the unsecured books of its competitors began to teach their owners about loss rates.

Technology was the other half of the play. NetBanking in 1999, SMS banking in 2000, then mobile banking under the "Bank Aap Ki Muththi Mein" banner - the bank in your palm, years before smartphones made the slogan literal. The pattern repeated for two decades: be early to the channel, be late to the risk. In July 2001, the bank listed its ADS on the New York Stock Exchange at $13.83 a piece, taking the Indian retail-banking story global.

The acquisition appetite

Boring did not mean small. The bank grew by swallowing rivals at moments of maximum advantage. In 2000 it absorbed Times Bank - promoted by the Times of India group - in the first merger between two new-generation private banks, a share swap documented in the bank's recorded history. In 2008 came the big one: Centurion Bank of Punjab, itself the product of a merger, for ₹9,510 crore ($2.19 billion) in shares - at the time the largest acquisition in the Indian financial sector, reported even by the New York Times-cited record. The deal roughly doubled the branch network overnight and proved that the boring bank could integrate chaos at speed. Each acquisition followed the same template: buy distressed or subscale franchises cheap, fold them into the grid, extract the deposits, delete the risk.

Too big to fail, too admired to question

Fast-forward through the years this dossier will fill. By 2025, the rat room had become a bank with 9,689 branches and 21,417 ATMs, the tenth-largest bank in the world by market capitalisation, and - by the RBI's own designation - a Domestic Systemically Important Bank, one of three institutions in the country officially "too big to fail," alongside the State Bank of India and ICICI Bank. In 2020, the bank even moved its headquarters out of the Worli complex where it had started 25 years earlier, as Business Standard reported. The rats, one assumes, did not get a farewell note.

Why dwell on all this in a dossier of scandals? Because the founding myth is not decoration - it is the alibi. For three decades, every regulator, rating agency and investor in the country carried a mental model of HDFC Bank built in that Kamala Mills room: conservative, disciplined, incapable of a bad headline. That model was earned, and it was also useful. When you are the boring bank, nobody looks twice at the fee line. When you are the bank that said no to easy money, nobody asks how hard you sell insurance. The chapters that follow are not an argument that the founding story was false. They are an argument that it became a shield - that an institution's own legend can grow large enough to hide behind. The curious reader should keep one number in mind from this chapter onward: ₹13.83, the price of the ADS in 2001. Everything after is the story of what that price bought - and what it cost.

A record at the crease

Longevity is its own kind of evidence. When Puri stepped down on 26 October 2020, he had run the bank for 26 years - a tenure Rediff measured against global records and found in rare company: Joseph Neubauer's 31 years at Aramark, Ray Irani's 21 at Occidental. Outside promoter-bosses, almost nobody in world business runs a major institution that long. The tenure matters because it fused the man and the institution in the public mind. HDFC Bank's culture was not a document; it was a person. And the central, unexamined question of the succession - the question that hangs over Chapter 8 and everything after - is what happens to a culture when the person leaves the building.

The man himself never pretended the myth was mystical. His formula, repeated across interviews across the decades, was almost offensively simple: understand the customer, price the risk, control the cost, never believe your own brochure. The genius was not the recipe; it was the refusal to improvise. Rivals had the same ingredients. They could not stop themselves cooking.

The stress test nobody scheduled

The doctrine's vindication arrived in September 2008. When Lehman Brothers collapsed and the global banking system discovered what was actually inside its balance sheets, Indian banks went back to their drawing boards to hunt for hidden rot. HDFC Bank, as Rediff's retrospective put it, did not have to - the boring bank had no drawing board to fix. The year the world's most sophisticated banks confessed to not understanding their own books, the rat-room bank reported yet another year of the same: growth, low bad loans, no drama. It is impossible to overstate what this did to the bank's reputation. In a crisis, investors do not buy growth stories; they buy trust stories. HDFC Bank became the trust story, and the valuation premium it commanded for the next fifteen years was the dividend on that single season.

That premium is the financial expression of the founding myth, and it is worth defining before the later chapters spend it. A bank stock trades at a premium when investors believe three things: that its growth is real, that its bad-loan numbers are honest, and that its management will not surprise them. For two decades, HDFC Bank was the only large Indian bank about which all three beliefs were held without asterisks. The chapters ahead are, in one sense, the story of the asterisks arriving - quietly at first, in footnotes and penalty orders, and then all at once, in a chairman's resignation letter.

Two companies, one name

A subtlety most coverage missed, and the serious reader should not: for most of its life, "HDFC" was two institutions sharing four letters. HDFC Ltd - the parent, the mortgage lender, the establishment - carried the old-world gravitas of H.T. Parekh's 1977 founding. HDFC Bank was the brash child, the retail machine, the stock-market darling. They shared a brand, a board culture and eventually a chairman, but not a metabolism. The parent grew like a glacier; the bank grew like a weed. When regulators, customers and journalists said "HDFC," they were usually attributing the parent's reputation to the bank's conduct. That borrowed credibility was priceless - and it helps explain why, when the bank's own troubles began surfacing, the disbelief was so total and so prolonged. People were not defending a bank. They were defending a name they had grown up with.

The name is the last thing this chapter bequeaths to the reader. Blue grid: four blue squares in a grid, a logo so familiar it functions as wallpaper in Indian commercial life. It is on the passbook your parents trusted, the branch outside the station, the salary account your employer defaults to. This dossier is named for it - not to deface it, but to do the one thing three decades of admiration never required anyone to do: to actually read it.

The room, revisited

One more walk through the founding scene, because the scene does more work than any balance sheet. Worli in 1994 was mill land in transition - the great textile mills dying, the compound walls crumbling, the future not yet arrived. Kamala Mills was exactly the kind of address a Citibank star was not supposed to end up in: leaking, rodent-infested, with wiring the local fauna treated as a food group. The Sandoz House branch across the road, inaugurated by then finance minister Manmohan Singh, gave the enterprise its ceremonial photograph. The room gave it its parable.

Every great institution keeps a humble-origin story in the vault, and most of them are varnished beyond recognition by the time they are told at AGMs. This one is different only in that the inconvenient parts survived - the rats made it into the official retellings, and Puri himself kept them there. Why would a banker preserve the rats? Because the rats are the warranty. They certify that what followed was earned, not inherited; that the man at the top knew the price of the floor before he bought the sky. An origin story that authentic is not just history. It is armour. And the reader should know, before the next fourteen chapters test that armour, exactly how thick it was forged.

What the founders could not foresee

The doctrine had one hidden dependency: the man himself. A culture enforced by personal vigilance - by a chief who, as the next chapter records, said nothing moved without his consent - is a culture with a single point of failure. For twenty-six years the point held. The rats were cleared, the branches multiplied, the premium compounded, and the question nobody asked grew larger every year: what happens to a machine built around one man's eyes and ears when the man retires? The answer arrived in instalments, and it fills the rest of this book. But the question was born in the rat room, in 1994, in the gap between what Puri built and what anyone else could be expected to hold together.

The ghosts of the licence era

To understand why a "boring bank" was revolutionary, remember what Indian banking looked like the day before HDFC Bank opened. Nationalised in two waves in 1969 and 1980, the sector was a state utility: branches as ration offices, credit as patronage, service as a favour granted. The 1991 crisis - India pledging its gold to stay solvent - forced the Narasimham reforms, and the new private banks of 1993-94 were the reform's most visible bet: that private capital, professionally managed, could run banks without either plundering them or embalming them. The bet was not obviously safe. Within a decade, one member of the class, Global Trust Bank, had failed and been folded into a rival by the regulator; others stumbled through bad-loan cycles and management churn. The survivors - ICICI Bank, the institution that became Axis, and above all HDFC Bank - ended up owning the future the reforms had promised.

That is the soil the blue grid grew in, and it explains a loyalty no advertising budget could buy. To a generation of Indians, the new private banks were not companies; they were proof that the country could build institutions that worked. HDFC Bank, the most flawless of them, became the proof's exhibit A. Exhibits do not get cross-examined. That is the privilege this dossier intends to retire.

The chronology, then, in one breath: licensed in the flush of reform, incorporated in August 1994, operational by January 1995, public in India and then on the NYSE by 2001, an acquirer twice over by 2008, a crisis-vindicated icon by 2009, and the country's most valuable bank for most of the two decades after. Every element of the legend is true, and every element is documented - the bank's own milestone publications and the press of the era agree on the outline. Where this dossier parts company with the legend is not on the facts but on the shelf life. Institutions are not statues; what was earned in 1994 must be re-earned every quarter. The chapters ahead measure how the re-earning has been going.