Renowned music composer Shankar Mahadevan has opened up about a fascinating piece of trivia behind the making of the title track from the timeless classic 'Dil Chahta Hai'. According to the composer, he, along with fellow music directors Ehsaan Noorani and Loy Mendonsa, together with sound engineer Vijay Benegal (Benny), had created as many as 21 different versions of the title song before finalising one.