In July this year, Prithu Gupta, a student of Modern School Vasant Vihar, Delhi, became the 64th Grandmaster of Chess at the age of 15 years, 4 months and 10 days. And last month (in November), Prithu was granted an audience with President of India, Ram Nath Kovind at Rashtrapati Bhavan. He was accompanied by Meenakshi Sahni,  school principal,  and …