The ceremony, held at Priyanka's residence, follows months of speculations around the relationship status of Priyanka, 36, and Nick, 25. The photographs from the ceremony did the rounds on social media, but an official statement or update from the celebrities is still awaited.
The former beauty queen was dressed in a subtle yellow designer ensemble, and Nick wore a pristine white kurta churidar as he performed the 'puja'.
One of the photographs shows Nick cosying up to Priyanka, who holds on to him, as they stand against a green background with a logo that reads 'NP' -- merged together to denote the amalgamation of the first letter of both their names.
The increased activity at Priyanka's residence since the past two to three days had indicated preparations for a celebration. On Friday evening, people were busy decking up the semi-circular balcony with green foliage.
The paparazzi stationed outside the building captured a priest making his way into the house, as well as Priyanka's cousin Parineeti Chopra -- who too was dressed in yellow -- apart from a slew of relatives.
A party for close friends is likely to follow on Saturday evening
Nick arrived here on Thursday night with his parents -- mother Denise and father Kevin Jonas Sr in tow.
On Friday night, Priyanka, Nick and close family members stepped out for a dinner. Priyanka was seen proudly flaunting the rock as she made her way into a hotel, hand-in-hand with Nick, looking visibly elated.