Grand Master – P. Rakshan
P. Rakshan (born on September 9, 2016) of Tamil Nadu, India, is titled as ‘Grand Master’ for correctly answering 35 days, by their random dates, for fifty years from January 1, 1950 to December 31, 2000 (using mental calculation) in 5 minutes, at the age of 7 years and 1 month, as confirmed on November 1, 2023.