Sarthak Nirwan – IBR Achiever
Sarthak Nirwan (born on June 25, 2016) of Bhopal, Madhya Pradesh, is titled as ‘IBR Achiever’ for solving 10 multiplication sums (three-digit numbers multiplied by three-digit numbers) on a laptop in 45.51 seconds, using the ‘Mental Multiplication Online’ App, at the age of 9 years, as confirmed on July 22, 2025.
