India, May 23 -- The trailer of Hai Jawani Toh Ishq Hona Hai is finally out! At the trailer launch event in Mumbai, the cast and crew of the film, including actors Varun Dhawan, Mrunal Thakur and Pooja Hegde were present. Director David Dhawan was also present at the event, and at point during the press interaction, grew emotional. He praised Varun as a son for being there beside him through thick and thin, recalling his health scare a while back. (Also read: Hai Jawani Toh Ishq Hona Hai trailer: Varun Dhawan's desperation to become a father turns him into the worst partner)

As per news agency PTI, David turned emotional while speaking about his son. He said he was proud to be known as Varun's father and praised the actor for standing by...