The Founder Who Gave Couples One Account to Share
Srinivas Sarkar spent a career watching companies optimize spreadsheets. Then he noticed that couples had changed for two decades while their banks stood still - and built Coupl to close the gap.
For twenty years, Indian couples changed almost everything about how they lived together. They moved in before marriage. They split rent across two salaries. They kept different surnames on purpose. The one thing that never moved was the bank. Open a joint account and you were sent to a branch, handed a stack of forms, quizzed on why your addresses did not match, and told to keep a minimum balance parked in an account you had not yet learned to trust. Srinivas Sarkar looked at that gap and decided it was a company.
Coupl is what he built - a zero-balance digital joint account made specifically for couples, one that opens in under a minute and comes with a linked RuPay debit card. It serves the married, the unmarried, and LGBTQ+ partners without treating any of them as an exception to be explained. That last part is not a marketing line. Roughly 40% of the couples on Coupl are unmarried, spread across tier 1, tier 2, and tier 3 cities. These are exactly the people traditional banks made feel like a paperwork problem.
The framing Sarkar keeps returning to is deceptively plain.
Managing a couple's finances requires more than just arithmetic. It also requires timing, trust, and openness. - Srinivas Sarkar, Co-Founder & CEO, Coupl
01The consultant yearsLearning to spot the quiet problem
Before the app, before Y Combinator, Sarkar was a senior management consultant at EY. His job was to sit inside internet-first companies and some of India's fastest-growing unicorns and find the money leaking out of their operations. He led cost optimization for a major cab aggregator. He ran a supplier-experience overhaul for an e-commerce player. Consulting is a strange apprenticeship for a founder - you get very good at seeing where things break, and almost no chance to fix them yourself.
A BITS Pilani graduate, Sarkar had the analytical training and the pattern-recognition. What he did not yet have was a problem worth building a decade around. The habit that carried over from those years is a specific one: watch what people struggle with quietly, then remove the struggle. It is the same instinct that later made him notice that couples were quietly working around their banks instead of being served by them.
Couples evolved for two decades. Joint accounts did not. Everything else about Coupl follows from that single observation.
02The acceleratorMeeting a co-founder by design
The best co-founder stories tend to start sideways, and Sarkar's is no exception. He joined Entrepreneur First as a Founder in Residence - a program built on the unusual premise that you commit to becoming a founder first and find the idea and the partner second. There he met Kushagra Manglik, an IIT Kanpur electrical engineer who had been a research software engineer on IBM Research's AI-for-supply-chain team, with a stack of patents to his name.
It is a nicely mismatched pairing. A consultant who had spent years reading businesses from the outside, and a researcher who had spent years building systems from the inside. They left Entrepreneur First with a decision: to solve, in Sarkar's words, the number-one money problem couples face in India. In 2022 they founded Coupl and were accepted into Y Combinator's Summer 2022 batch, backed by YC and the Entrepreneur First Global Fund.
We saw that while couples had evolved over the past two decades, banking products for couples such as joint accounts had simply not kept pace. - Srinivas Sarkar
03The productSixty seconds instead of a branch visit
The product decision that matters most is the one about friction. Coupl compressed the joint account - historically an errand involving a physical branch, two sets of documents, and a minimum balance - down to something a couple can finish on a phone in under 60 seconds. No balance requirement. A co-branded RuPay debit card. Bill payments, spending limits, alerts, and a shared view of where the money actually goes.
None of these features are individually novel. What is novel is the decision about who the account is for. By designing for unmarried and LGBTQ+ couples from the start - the users banks most often rejected over mismatched surnames or addresses - Coupl turned an inclusion decision into a distribution advantage. The people nobody was serving became the people who had a reason to switch.
04The growthA media budget of zero
Here is the number that makes other founders lean in. Coupl grew to more than 80,000 couples and over 300 crore in transactions across 5,000-plus pin codes in India - and it did it with zero advertising spend. The growth engine was not a media plan. It was couples telling other couples. For a product that lives inside the most private conversation two people have - money - word of mouth is not a nice-to-have. It is the only channel that carries any trust.
That last figure reframes the whole story. When a couple recommends a bank to their friends, they are vouching for something with their own relationship attached. Coupl's growth is a rolling verdict on whether the product actually reduced friction in people's lives, delivered one honest referral at a time.
05The recognitionLists, stages and a second job teaching
The accolades arrived in a cluster. Sarkar was named to Forbes 30 Under 30 Asia in the Finance and Venture Capital category, to the Entrepreneur 35 Under 35 list, and to the BITS Global 30 Under 30. He is a three-time TEDx speaker and a frequent guest at BITSoM, IIT Kharagpur, and Razorpay. Alongside running Coupl, he moonlights as a finance educator with The 1% Club - which fits a founder whose stated mission is less about product and more about people.
Our mission is to build the most financially-savvy generation of couples, ever. - Srinivas Sarkar
Read that mission twice and you notice it does not mention banking. It is about the people, not the app. Coupl, in Sarkar's telling, is closer to a conversation starter than a fintech tool - a way for two people to talk about money with a little more timing, trust, and openness than the generation before them managed.
06The road aheadCards, credit, and countries
The next chapter is about widening the surface area. Sarkar has pointed to physical debit cards and lending products - credit cards and personal loans - as the obvious extensions of a shared account, plus expansion beyond India into the US, MENA, and Southeast Asian markets. Shared money is not an Indian problem. It is a human one, which is exactly the kind of problem a founder wants underneath a company.
- Pre-2021Senior management consultant at EY, advising internet-first firms and unicorn startups
- 2021-2022Founder in Residence at Entrepreneur First; meets co-founder Kushagra Manglik
- 2022Co-founds Coupl; joins Y Combinator Summer 2022 batch
- 2023Coupl publicly launches its neobank for couples
- 2024Named to Forbes 30 Under 30 Asia and Entrepreneur 35 Under 35
- 2024-2025Coupl scales to 80,000+ couples and 300+ crore in transactions, ad-spend free
The through-line from EY to YC is quieter than the milestones suggest. It is the same move each time: find the thing people quietly work around, then take the work out of it. Sarkar did it for a cab aggregator's cost structure. He did it for an e-commerce supplier network. He is doing it now for the joint account - the most ordinary financial product in the world, and, until recently, one of the most quietly broken.