Mary Kom (48kg), who came into the event in pursuit of a third consecutive gold medal after the Asian championships and the India Open, lost to Bulgaria's Sevda Asenova.
Also settling for a silver was Seema Poonia (+81kg), who went down to Russia's Anna Ivanova, done in by her rival's sheer power.
It was a stunning result for Mary Kom, who dominated the bout against the local favourite. The Olympic bronze-medallist Indian was the one initiating any attack for most of the bout.
It came as quite a surprise when the judges ruled in the Asenova's favour, leaving the Indian corner shocked.
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In contrast, Seema was up against a power-puncher in Ivanova and was found wanting. Ivanova was also quicker of the two and stuck to hitting straight.
Such was the Russian's dominance that even a warning in the final round for bending had no bearing on the final outcome.
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