Siwach, who the world title last year, claimed the Asian youth championships silver this year besides a gold at the Youth Commonwealth Games.
Siwach polled 36.2 per cent votes in his category in the online poll to claim the top honours.
India also fetched the Best Asian International Technical Official (ITO) award with Lenny D'Gama winning the online poll.
D'Gama officiated at the ASBC Asian Confederation Junior Boxing Championships in Puerto Princesa and also in the Asian Women's Boxing Championships in Ho Chi Minh City.
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