The 24-year-old prevailed 3-2 over local wrestler Roksana in the final of the competition.
Vinesh had earlier beaten Sofia Mattson of Sweden, the Rio Olympics bronze medallist, in the quarterfinals of this international tournament.
The top Indian woman wrestler had stood atop the podium at Grand Prix of Spain and at the Yasar Dogu International at Istanbul, Turkey last month.
“The biggest positives from wrestling against strong opponents are it forces me out of my comfort zone, makes me push my limits, and teaches important lessons! Happy with my performance at the #PolandOpen Excited by this start as a 53 kg wrestler, now onwards and upwards,” Vinesh tweeted.