Siyah S. – IBR Achiever
Siyah S. (born on July 30, 2020) of Dindigul, Tamil Nadu, is titled as ‘IBR Achiever’ for mentally solving 59 sums (upto 10 terms) and providing the answers orally in 15 minutes and 33 seconds, using Abacus technique, at the age of 4 years and 7 months, as confirmed on March 12, 2025.
