'When Ajayji told me that we have to do 'Po po po' song, I said I have a side movement in mind. I was very sure that I have to do this song for kids and I did it. So I'm happy that I had thought it to be for kids and successfully did it,' Acharya said in an interview.u00a0He is also happy to have got a chance to work with the three actors.

'I don't know whether I'll get this experience again or not. All three stars - Ajay, Salman and Sanjay - are together and all of them have done a great job,' he said.u00a0'I am honoured to have worked with all three stars and all of them did what I said and did the song,' he added.u00a0Directed by Ashwin Dhir, 'Son of Sardar', releasing Nov 13, also features Sonakshi Sinha.u00a0