Song celebrating the youth spirit was launched at the Delhi Law Faculty.
The track has been crooned by Punjabi pop superstar Gippy Grewal and Harshdeep Kaur.
The shooting of the song, which has Ranveer and Vaani dressed in golden ethnic wear by costume partner Divani, was completed in three days.
The monument was shut down for the shooting duration and emptied of visitors by city authorities.
The number has been composed by Vishal-Shekhar and Jaideep Sahni has penned the lyrics.
Directed by Aditya Chopra, "Befikre" is set to hit the theatres on December 9.