The first look launch of the film happened Tuesday here and when asked about the experience, she humorously said that the actor is "possessive" about her.
"Ranbir is possessive about me (smiles). It feels like it's my first film. I am excited about it," Deepika told reporters during the first look launch of the film.
In one of the scenes shown in the promo, Deepika says Main tumahare saath 2 min bhi rahi toh muje pyaar ho jayega tumse, Phir se.
When asked about the dialogue, the 27-year-old said: "I would like to say the chemical combination has been tested before and then we agreed to do the film."
The actor, who will be seen with Deepika after four long years, says the actress has grown over the years.
"I was amazed and happy looking the way she has grown as an actress. She is extremely intelligent and has a pretty smile, so it is easy to act as like you are in love with her," he said.
With back to back question firing on Ranbir and Deepika's personal life. Karan Johar said, "I request you all to ask questions related to the film. I am inviting you guys to watch the film and it's not a wedding invite."
Directed by Ayaan Mukerjee Yeh Jawaani Hai Deewani, the film also features Kalki Kochelin.