Indian students won two silver and one bronze medals in the 21st International Astronomy Olympiad (IAO) held at Pamporovo, Bulgaria.
India finished among the top four out of the 16 participating nations.
M S Wajid from Hyderabad and Prashant Gokhale from Mumbai won silver medals, and Harshit Khandelwal from Indore secured the bronze medal in the event that took place from October 5 to 13.
The IAO is an internationally recognised annual astronomy scientific-educational event which includes an intellectual competition between high school students of 14 to 18 years age group.
The Eurasian Astronomical Society founded the IAO in 1996. The competing part of IAO consists of three rounds: a theoretical, an observational, and a practical.