In 5th October 1950, she appeared in a BBC show where the host Leslie Mitchell gave her a complex maths problem to solve, which the magician with numbers did in seconds. But Leslie said the answer of Shakuntala Devi was incorrect. It was not the answer that the channel had. However, on cross-checking Leslie found that the answer of Shakuntala Devi was correct and the answer that the channel had was wrong. From that day the term Human Computer became synonymous with her.