Meet Raveendran, a maths teacher who zeroed in on edutech start-up Byju's

Byju's sells online learning modules for a fee

A teacher in the garb of an entrepreneur is not someone who comes around too often. Probably this combination provided the perfect ingredients to build one of the world’s most successful edutech start-ups, as Byju Raveendran has shown.

After its most recent round of funding of $540 million from Naspers, General Atlantic, and Canadian Pension Fund, valuing the company at $3.6 billion, Byju's has emerged as the most-valuable edutech start-up globally. The company's valuation has quadrupled in the past one year, also making it among the top five most-valuable Internet companies in India.

Starting out as a math teacher pre-2010,