Nischal Narayanam was nine when he spotted an error in the balance sheet of his father's company in Hyderabad. At 10, he authored a series of books on maths. Staying ahead of the curve is something he has stuck with - at 19, he has qualified as the country's youngest Chartered Accountant. Unstoppable, you might think. Only that the law does not allow him to practise as a professional till he turns 21.
