"At the end of nine months, when my son was born and I was there to receive him, he was crying. When he stopped crying and opened his eyes, my world actually came to a standstill," Vivek told in an interview at the Galaxy Hotel, in Gurgaon near here.
"It seemed he owned me and my universe in that one moment, and that was the most beautiful feeling in the world," he added.
The couple become proud parents of the child Feb 6. Vivek says the past nine months have been full of memories for them.
"It has been awesome. When Priyanka was pregnant, I had made a clear decision that I am going to be a part of the whole thing. Those nine months were beautiful," said the actor, who married Priyanka, daughter of late Karnataka minister Jeevaraj Alva, in 2010.
"Despite the fact that I was busy shooting, I used to make sure I was with her every time she went for her check-up. The first time we heard the heartbeat of the baby, watched him during sonography - all these things, we really enjoyed as a couple," he said.
The 36-year-old actor said he did everything he could to keep his wife happy during the entire phase.
"She (Priyanka) used to wake up in the night and say that 'I am hungry and I want to eat this or that'. To satisfy each and every carving that she had and make her happy, was a very beautiful phase," he added.
Vivek was here to promote his just released film "Jayantabhai Ki Luv Story" with co-star Neha Sharma. His schedule left him with little time to spend with the newborn.
Even after "Jayantabhai..." hit the screen Friday, he will get busy promoting his next film "Zila Ghaziabad", which releases Feb 22.
Thereafter, he "plans to take a break" to spend quality time with his family.