The 36-year-old Mary Kom triumphed 5-0 against Thailand's Jutamas Jitpong, a spunky boxer who kept the veteran on her toes with an aggressive approach but just didn't connect enough.
It was gold rush for India at the Asian Junior Boxing Championships in Dubai on Sunday with four pugilists from the country winning gold medals.
M C Mary Kom pulled no punches as she lambasted critics and challengers after securing her second Olympic appearance. Her reference was to the selection controversy that preceded the qualifiers when former junior world champion Nikhat Zareen sought Sports Minister Kiren Rijiju's intervention while demanding a trial bout against the Manipuri. The ill-tempered and hyped trial bout was won by Mary Kom.
Shrugging off his controversial semi-final defeat, Bajrang Punia bagged his third World Wrestling Championships medal while Ravi Dahiya made his debut memorable by grabbing a bronze.
Sharath Kamal's progress to the third round of the men's singles in table tennis was the only bright spot on another gloomy day for India at the Tokyo Olympics on Monday.
Mary Kom would look to go one step closer towards her sixth gold when she takes the ring in the 48kg semifinals, in New Delhi, on Thursday.
Vijender Singh belatedly went into the offensive to defend his WBO Oriental and Asia Pacific Super middleweight titles with an unanimous verdict over African champion Ernest Amuzu here tonight, continuing his unbeaten run in the pro circuit.
Of three grapplers in action, only Hardeep managed to win a bout when he downed Morocco's Choucri Atafi 8-4 in the 1/16 in the 97kg category. Later he lost his 1/8 bout 1-4 to Laokratis Kesidis from Greece.