Chopra, 36, and Jonas, 25, first met past year and in May, they both attended the Met Gala in New York City as guests of Ralph Lauren.
It was also recently reported that Nick's family will be jetting to India soon to meet Priyanka's family. However, Chopra did not shy away from flashing her ring at Manish Malhotra's party held yesterday.
Sevilla threaten to withdraw from tonight's Super Cup clash with Barcelona
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They are reported to have become engaged last month but have yet to confirm the news publicly.
Another source claimed to People: 'Nick has been obsessed with Priyanka since they started dating'. In the weeks that followed, she met his family on the East Coast and in London, and he met hers in India. His friends and family have never seen him like this, and they're all really excited for him.
The two stars got serious fast, with Jonas taking Chopra as his date to a family wedding in Atlantic City in June. She told us in the Nick of time about her decision and we are very happy for her...
Nick seemed to acknowledge the engagement reports at his John Varvatos clothing launch party last week, saying 'Thanks man, ' when congratulated by party-goers, Us Weekly reported.