In a video ad featuring children talking about their favourite subjects appears a man in a black T-shirt. Using animated squares, this man, Byju Raveendran, quickly explains the Pythagoras Theorem. All the ads for this company feature teachers, but the man who takes on Pythagoras is the founder and chief operating officer of Bengaluru-based Think & Learn, one of India’s fastest growing education startups.
A few years ago, when Argentina faced Venezuela in Kolkata’s Salt Lake Stadium during a football match, Raveendran sat in the audience with his chief marketing officer, Pravin Prakash. Out of the blue, Raveendran told Prakash

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