When 27-year-old Abhishek Dhama first broached the idea of ditching engineering to work on a farm, his family stared in disbelief. “Why did you study so much if you had to do farming,” was a common refrain. Other farmers in north Delhi’s Palla village, mockingly called him ‘Mr Stevia’ when he started cultivating a relatively unknown plant that is used to make a natural sweetener. But Dhama, who gave up a career in electronics and communication engineering, to take up agriculture three years ago, didn’t let any of this bother him. Like Dhama, many other young engineers are ditching their bus...