The gold medal went to Le Manh Tuan, a student of chemistry at Hanoi-Amsterdam Gifted High School.
The five silver medals were awarded to Dao Vu Quang, a maths student, Tran Nhat Quang, a physics student, and Pham Quang Hieu, a chemistry student, all from Hanoi-Amsterdam Gifted High School.
The other two silver medals were presented to Khuat Duy Hong, a maths student from Son Tay talented high school, and Le Ba Truong Giang, a maths student from Nguyen Hue talented high school.
This is the highest result Vietnamese students have achieved in such competition.
Vietnamese students won six bronzes in 2011 and three silver and three bronze medals in 2012.
They are normally tested in maths, physics, chemistry, and biology.
This year’s event was held at Balewadi Sports Complex in Pune city, about 170km south of Mumbai state, from December 3-12.