After winning gold in Mental Calculation World Championship at Mind Sports Olympiad, 20-year-old Neelakanta Bhanu Prakash from Hyderabad has become the fastest human calculator in the world. "I hold four world records and 50 Limca records," Neelakanta said. "Breaking these records, once held by Math maestros like Scott Flansburg and Shakuntala Devi, is a matter of national pride," he added.