The tournament, organised by the Singapore Chess Federation, saw around 500 players from 14 countries competing for the top honours.
Rajveer, a student of city-based Vibgyor High School, with clever tactical play, remained unbeaten to finish with a total of 7.5 points out of a possible 8, stated a media release issued by South Mumbai Chess Academy.
Rajveer, ranked third in his age group in the country, scored some creditable wins against higher rated opponents and also forced a draw against Singapore’s Goh Zi Han, the highest ranked player in the competition.
His sister Anaishaa, who is the defending Maharashtra state Under-7 champion, won the silver medal in her age category.
She scored seven out of eight points.