BENGALURU: Rishi Atul Rajpopat (27), PhD scholar from St John’s College, Cambridge, just solved a 2,500-year-old grammar problem in the ancient Sanskrit texts written by 5th-century BC scholar and philologist Panini, that had perplexed traditional and modern researchers all these centuries. A major implication of his breakthrough is that now the algorithm that runs Panini’s grammar can potentially teach this grammar to computers.