The record for being the fastest to recall square values of numbers 1 to 30 in reverse order while being blindfolded was set by Kirtan Dsouza (born on January 9, 2018) of Mangalore, Karnataka. He recalled square values of 1 to 30 in reverse order when (from 30 to 1) in 1 minute, 10 seconds and 69 milliseconds, at the age of 6 years, 1 month and 23 days.