Kunal Shah on winning in India, second-order thinking, the philosophy of startups, and more

Lenny Rachitsky interviews Kunal Shah, founder and CEO of CRED and earlier founder of Freecharge, about building products in India and beyond. They cover his Delta 4 product framework, why Indian-born leaders thrive in US tech, the gap between user growth and revenue per user in India, and lessons on second-order thinking and curiosity.

01Key learnings

• Use the Delta 4 test: if a new product is at least four points better than the existing alternative on a 1-10 scale, it tends to be irreversible, forgiving of failure, and easy to talk about.
• Check whether a feature is genuinely more efficient than the old way; adding technology alone does not guarantee a Delta 4 improvement, as the online suit example shows.
• In low-income markets, evaluate user counts with caution: India can deliver huge DAUs but low ARPU, so judge business potential by monetization per user, not raw scale.
• In low-trust markets, consumers concentrate trust in known brands and super apps, so brand building and broad trusted offerings often matter more than point solutions.
• Understand how a country values time and money before copying a foreign profit model; local profit pools reveal what people actually value.
• Build curiosity from security: ask the basic questions, keep learning, and collect and connect dots to build an information edge.
• Ask monthly what the hardest problems solved were, rather than measuring how busy the team is; senior leaders are chief problem solvers.
• Practice second-order thinking by asking what happens after an event and why, and use hypotheticals to train deeper reasoning.

02Frameworks mentioned

Summary and takeaways written by PM Atlas; quotes are short excerpts. © the original author.