Sai Ganishka E. – IBR Achiever
Sai Ganishka E. (born on April 3, 2016) of Tiruvannamalai, Tamil Nadu, is titled as ‘IBR Achiever’ for recalling the cubes of numbers from 1 to 50 in 1 minute and 52 seconds, at the age of 9 years and 8 months, as confirmed on December 10, 2025.
