P. Adhiyan (born on September 18, 2020) of Tiruvannamalai, Tamil Nadu, is titled as ‘IBR Achiever’ for solving 60 double-digit addition and subtraction sums (of 2 rows each) on a sheet of paper in 4 minutes, 27 seconds and 84 milliseconds, using a pencil, at the age of 5 years and 5 months, as confirmed on March 6, 2026.
