Aarti won a bronze in women's 10000m race walk event with national U20 record time to open India's medal account in the World U20 Athletics Championships on Friday. The 17-year-old Aarti clocked 44 minutes 39.39 seconds to finish third in the gruelling event on the penultimate day of competitions. Aarti broke her own earlier national record of 47:21.04 which she had clocked in March while winning gold in the National Federation Cup U20 Championships in Lucknow. Chinese race walkers Zhuoma Baima (43:26.60) and Meiling Chen (44:30.67) took the gold and silver respectively.