This is a situational song in the midst of hooligans. raaga based melody is most inappropriate there.....
the song, the yelling the rhythm, the beats, the singing, the tempo, all put together make then song special. it is considred as an enjoyable song suited in the fast song category, is it beautiful, contexually it is...so thats what counts.
I agree.. and Himesh's song in the movie is situated in the midst of aristocrats at a tea party hosted by the Queen in Buckingham Palace, which makes all the yelling/howling completely inappropriate. 😊