Chopra joins a unique team of elite athletes from across the generations.
After Chopra made his first throw, the officials failed to mark it and the Indian javelin thrower had to argue with the officials but eventually he was given another chance.
Olympic gold medallist Chopra defended his title with a season's best throw of 88.88m in his fourth attempt, while Jena acame up with his personal best of 87.54 -- also his fourth attempt -- to finish 1-2.
Lovlina Borgohain will be in action in the gold-medal bout while India take on South Korea in men's hockey semifinals.
The way Chopra carries himself reflects his humility and desire to make a positive impact beyond his chosen discipline.
Chopra will now head to the Hangzhou Asian Games where he will defend the gold he had won in 2018 in Indonesia.
The achievements of Chopra, Praggnanandhaa and Prannoy will spur a new generation of Indians to take to these events with vigour and passion.
The 25-year-old Chopra on Sunday became only the third javelin thrower in history to hold both the Olympic and World Championships crowns after winning the Worlds title in Budapest.
The Indian star's best effort was 15 centimetres short of Vadlejch's best throw on the night.
Neeraj Chopra has now left an indelible mark in history, becoming the first-ever Indian to clinch a gold medal at this prestigious championship.