new delhi indian sprinter hima das scripted history on thursday as she clinched the gold medal in the 400m final at the iaaf world under20 athletics championships in tampere finland becoming the first indian athlete to do so in a track eventthe 18yearold das clocked 5146 seconds to claim the top position andrea miklos of romania came second with a timing of 5207 seconds to claim silver while usas taylor manson took home broze after clocking 5228 secondsdas had also led the overall time charts in the semifinals with a timing of 5210 seconds on wednesday she also finished the first round heats on tuesday clocking 5225 secondsthe assam girl clocked an indian u20 record of 5132 seconds to finish sixth in the commonwealth games 400m final in gold coast in april since then she has gone onto improving her timings she lowered the indian u20 record in 400m to 5113 seconds while winning gold in the recentlyconcluded national inter state championships in guwahatiearlier on wednesday gaurav failed to progress further as he finished fifth in mens 400m heat and 42nd overall with a time of 4861 there was also disappointment in the mens long jump final where m shreeshankar finished sixth with the best jump of 775mshe now joins the illustrious company of star javelin thrower neeraj chopra who won a gold in poland in the last edition in 2016 in a world record effortthe other medal winners at the world junior championships were seema punia bronze in discus in 2002 and navjeet kaur dhillon bronze in discus in 2014