"I am more proud than I have been for a very, very long time. I am proud to be in the country where Mary Kom belongs," Priyanka, who starred in a biopic on Kom, said.
Kom, 31, defeated Kazakhstan's Zhaina Shekerbekova in the flyweight (51KG) summit clash in Incheon, Korea to become the first Indian woman boxer to clinch a gold medal at the Asian Games.
Priyanka, 32, took to Twitter to express her happiness. "Yaaaaaay!!! Now that's called Woman Power! Mary Kom gets gold... Makes India Proud & shows us that we can achieve anything! (sic)".
"So proud of u @mangtec you r a true champ!! My Shero! Be Unbeatable Be Unbreakable Be MaryKom (sic)," she wrote.
Film's director Omung Kumar also congratulated Kom.