India’s Nishant Dev and Sachin Siwach entered the pre-quarterfinals of the World Boxing Olympic Qualifiers in Bangkok, Thailand on Tuesday. Nishant defeated his Mongolian opponent Otgonbaatar Byamba-Erdeneto in the Round of 32 bout in the 71kg category. Sachin outclassed Frederik Jensen of Denmark in the round of 32 bout in the 57 kg category. However, Abhinash Jamwal was knocked out in the 63.5kg category.