According to the Athletics Federation of India release, Poulose clocked 13.64sec in the hurdles race, which is also a new National record (youth) and personal best, while Mithravarun threw a personal best of 54.71 metres in discus throw at the Nanjing Olympics Sports Centre.
Both of them have advanced to the Final-A stage, which is the second stage of the competition.
Meanwhile, Ajay Kumar will be competing in the 1500 metres event on the second day of the athletics competition at the Youth Olympic Games.