Vikash Malik (60kg), Sumit Sangwan (81kg) and Satish Kumar (+91kg) joined Shiva Thapa (56kg) and Manoj Kumar (64kg) in the quarterfinals, making it one better than the previous best achieved in the 2011 edition in Azerbaijan.
"It is a historic performance. I mean, we have won medals but as far as reaching this level is concerned, it is the first time that five Indians have made the quarterfinals," an elated national coach Gurbax Singh Sandhu told PTI.
Vikash was the first Indian boxer to step into the ring today and was the underdog against fifth seed and former 2008 European Championships silver-medallist Miklos Varga.
The Indian trailed by a couple of points in the opening round but made a stupendous recovery in the next two rounds, clinching them unanimously to emerge triumphant.
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Vikash has another tough bout at hand as he will be facing Brazil's Robson Conceicao, a former Pan-American Games silver-medallist who has been seeded fourth here.
"He mostly employed his straight punches and uppercuts to good effect. In fact, Vikash did not give any chance or time to the Hungarian boxer to regain his composure. It is a great win," Sandhu said.
Next in was Sumit and it never looked that he was facing an opponent more fancied than him.