In October 2015, Jaipur's Suresh Kumar Sharma memorised and recited 70,030 post-decimal digits of the mathematical constant Pi in 17 hours 14 minutes, breaking a Guinness World Record set by another Indian, Rajveer Meena in March 2015. Meena had recalled 70,000 digits blindfolded in 9 hours 27 minutes, breaking a 10-year-old record set by a Chinese, who recalled 67,890 digits.