India, May 7 -- Fintechs have long been viewed as giant killers, aiming to disrupt all major components of the financial world, be it payments, lending, insurance, stock broking or wealth management. They are a catch-all for a new wave of transformative technologies and financial inclusion with enormous ripple effects. But rarely do we find one to engage in witty wordplay or burst into poetic storytelling to promote its core mission.

India's biggest stockbroker, Groww, a startup barely a decade old but serving over 1.3 crore active investors (per NSE) across the country's bourses, did just that in January this year. Its impact, as usual, is far-reaching yet simple. Since its launch in 2016, the customer-first fintech has demystified capi...