Boxer Manoj Kumar stunned Evaldas Petrauskas of Lithuania by a split decision in the Round of 32 of the men's Light Welterweight (64kg) category at the Rio centrio Pavilion.
He dominated all three rounds to carve out a 29-28, 29-28, 28-29 verdict and advance to the pre-quarterfinals here on Wednesday.
Manoj will next meet Fazluddin Gaiznazarov of Uzbekistan in the Round of 16 on August 14.
Both boxers were aggressive right from the start. Despite being much shorter than Manoj Petrauskas’ raw power did create some problems for the Haryana pugilist.
The Indian boxer utilsed his superior height to right effect, keeping his opponent at distance with sharp jabs and repeatedly penetrated Petrauskas' defence with his excellent combinations.
Manoj's superb defence and counter-punching style coupled with his superior meant that the Lithuanian was finding it tough to penetrate his defence and was forced to resort mainly to punches to the body.
Petrauskas's attempts to beat Manoj's defence by repeated rushing him and hoping to land with his jabs were met with effective counter-attacks by the Indian.
Petrauskas managed to hurt Manoj in the closing stages of the first round as he landed with a strong right that caught him off-balance. After the first round, the judges ruled10-9, 10-9, 9-10 in favour of the Indian.