A pre-tournament medal contender, the 23-year-old Chopra fuelled country's expectations by topping the qualification round with a stunning first round throw of 86.59m
At the Olympic Stadium, the 23-year-old Chopra, the junior world champion, cleared the automatic qualifying mark of 83.50 metres with his first attempt of 86.65 metres in Group A to emerge a strong contender
Competing for the first time in more than a year, Chopra hurled the spear to a distance of 88.07cm in his fifth attempt to obliterate his earlier national record of 88.06m