Abhimanyu Mishra (born February 5, 2009) is an American chess grandmaster and chess prodigy. He is the youngest player to attain the grandmaster title, having obtained it at the age of 12 years, 4 months, and 25 days. Along with the feat of becoming the youngest GM in history, Mishra also holds or has held additional "youngest" chess performance titles and records.
Source : Wikipedia