Nick, Priyanka and their families posted a slew of pics from the festivities.
"New reason and season for 'Joy,'" Priyanka's mom wrote, alongside a photo of the two.
Nick and Priyanka had in June traveled to India just the two of them and vacationed with her mom and other family members.
"Nick is calm and mature. He's a wonderful person and everyone in the family just loves him," Priyanka's mom later told After Hrs via DNA India. "He's so polite and respectful towards elders. What more can a mother want!"
She added, "I always trust Priyanka's judgment; she's not impulsive. She gave it a lot of thought and when she decided on something, I was sure it would be good."