Guinness world record holder Krishan Chahal is world renowned memory expert. Hailed as ‘’Memory King’’ he is two times world and two times national record holder for memory. His feats are acknowledged by Guinness Book of World Records, Limca Book of Records, Record Holders Republic, Open Record Book and Pi World Ranking. He has memorized the value of pi up to 43,000 decimal places and recited with 100% accuracy in 5hrs 21 minutes. Memorizing pi is considered as world’s toughest memory record widely known as Everest of all memory records.