The 15-year-old judoka became the first Indian to win a medal of any colour and in any age category across the World Championships.

An early waza-ari put Chanambam in front before the judoka withstood to plenty of pressure from Reis to secure the historic triumph in the capital of Bosnia and Herzegovina.

Latvia's Anna Gulite defeated France's Emma Melis and Italy's Savita Russo overcame Poland's Julia Bulanda in the bronze-medal bouts.

The women's under-63kg title was won by Turkey's Sinem Oruc who pulled off an ippon with just 45 seconds on the clock to beat Austrian Franziska Schloegl in the final.

Uzbekistan's Khurshida Razzokberdieva and Slovakia's Lenka Tomankova bagged the bronze medals after seeing off Austria's Emily Starzer and Egypt's Sagda Ghonim, respectively.

Keito Kihara grabbed another gold for Japan when he triumphed against Georgian Luka Javakhishvili with an ippon in the men's under-73kg final.

The bronze medals went to Georgia's Giorgi Mishvelidze and Uzbekistan's Samariddin Muxibiddinov who defeated Brazil's Antonio Medeiros Neto and The Netherlands' Joshua de Lange, respectively.

There was golden delight for Armenia in the men's under-81kg class when Gor Karapetyan outlasted Uzbekistan's Alisher Samanov in a match that was decided in golden score.

Ukraine's Igor Tsurkan emerged victorious from his bronze-medal bout against Frenchman Thomas Puchly, while Serbia’s Dusan Grahovac completed the podium with victory over Greece’s Panagiotis Kyvelidis.

Competition is due to conclude tomorrow.