The actor asked each and every attendee to take out their cell phones and switch on their flash light. With only flash lights and birthday song rhythm, Varun created a surreal moment.
The actor lauded Modi for giving a new definition to 'aangutha chaap' term.
The "ABCD 2" star said: "When I was in school, I used to hear this term 'aangutha chaap hai yeh' that means someone who uses thumb to sign. But I think we are in new India and in new India we don't use thumb to sign but to sign in... Our Prime Minister is someone who has ushered in the digital age in this country and I think we need to give respect to him."
"So let's take out our phones and put on your flash light and sing happy birthday song," he added.
The crowd was more than eager to be a part of this, and helped Varun wish Modi.
The actor later confessed to being bumped as he could not capture the moment on his phone.