Sachin had scored his maiden first-class century on debut for Mumbai in the Ranji Trophy in 1988, against Gujarat, as a 15-year-old. Thirty-four years later, 23-year-old Arjun, whose primary role is that of a fast bowler, hit 120 off 207 balls on day two of Goa’s game against Rajasthan, at Goa Cricket Association Academy Ground in Porvorim.