This was the title of my keynote address that I delivered on Dec. 22, 2020 (10 AM, IST) at the one-day conference on the History and Development of Mathematics. This conference was organized and onlined by the Mathematics Department of Maharshi Dayanand University, Rohtak, Haryana (est.1976). Mainly, it was a mathematical celebration of the 133rd birth anniversary of Ramanujan. In 2012, his birthday (Dec. 22, 1887) was declared as the National Mathematics Day by Prime Minister Manmohan Singh. My guess is that Manmohan Singh was also prompted by TP Srinivasan (1932Read More