30: Super

He pushes them to study 16 hours a day. But he also pushes them to dream. He makes them write "I will crack IIT" 100 times a day. For the first few years, the world laughed. “How can a man with a broken blackboard compete with the corporate giants of Kota?” Then the results came.

Every year, over one million students compete for just 10,000 seats in the Indian Institutes of Technology (IITs). It is arguably the toughest undergraduate entrance exam in the world. In this pressure cooker of ambition, coaching centers charge parents a fortune—often upwards of $5,000 a year—for a shot at the dream. Super 30

His lectures are legendary for their theatricality. He uses real-life examples from the slums to explain complex physics. To understand projectile motion, he throws a potato from a street vendor’s cart. To understand permutations, he uses the arrangement of shoes outside a temple. He pushes them to study 16 hours a day