New Delhi, July 15 -- India delivered a historic performance at the 56th International Physics Olympiad in Bucaramanga, Colombia, with all five members of its team winning gold medals, a perfect sweep that helped the country secure a joint World No.1 rank out of 381 students from 87 countries. Among the five gold medallists is Delhi's Rishit Garg, a name the city can now claim as part of one of India's most successful science Olympiad campaigns in recent memory.

"When they read out that all five of us had won gold, I actually did not process it immediately," Garg says. "It only hit me a little later that we had not just done well individually, we had done it together, as a team representing the whole country."

For the 18-year-old, the w...