Mary Kom, a five-time World Champion, defeated Kazakhstan's Zhaina Shekerbekova 2-0, with one judge scoring the bout 38-38 in Incheon Wednesday.
Priyanka, who essayed the ace boxer in a Bollywood film titled "Mary Kom" about the life of the sportswoman, took to Twitter to congratulate her.
"Yaaaaaay!!! Now that's called Woman Power! #MaryKom gets gold..makes India Proud & shows us that we can achieve anything! #Momof3 #champion. So proud of u @mangtec u r a true champ!! My Shero! Be #Unbeatable Be #Unbreakable Be #MaryKom," the National Award winning actress posted soon after Mary Kom's win.
The actress and the boxer struck up a friendship during the making of the Omung Kumar-directed film, which turned out to be a hit.
Priyanka has been supportive of the boxer, and just a day before the bout, she had tweeted her support for Mary Kom.
"Irrespective of the outcome of her final bout at the #AsianGames2014... India is proud of your achievement @MangteC #MaryKom. True champion," she had posted Tuesday.
A mother of three, 31-year-old Mary Kom belongs to Manipur and fought all odds to pursue her passion for boxing.