Lima [Peru], August 31 (ANI): Aarti clinched a bronze medal in the women’s 10000m race walk event with a national U20 record time to open India’s medal tally account in the World U20 Athletics Championships. The 17-year-old clocked a timing of 44:39.99s to secure a podium finish on the penultimate day of the Athletics Championships. Aarti bettered the national record of 47:21.04s that she previously registered in March this year at the National Federation Cup U20 Championships in Lucknow. China’s race walkers Zhuoma Baima (43:26.60) and Meiling Chen (44:30.67) walked away with the gold and sil…