Aamir, 51, shared the song with a tweet and wrote: "Here's the audio of our title track. It'll be great if you can experience it before the video is launched. Love." After listening to the audio, his fans will return the love.
The song carries a powerful message and promises to be a chartbuster. The lyrics, that has a rustic touch, evokes various emotions. Daler Mehndi has earlier sung for Aamir in Rang De Basanti.
Video: Listen to the title track of Aamir Khan's Dangal here
In the film, Haanikarak Baapu Mahavir trains his daughters Geeta and Babita Phogat, played by Fatima Sana Shaikh and Sanya Malhotra, to be wrestlers like him. His ambition for them is to one day win Olympic golds.
Last seen in PK in 2013, Aamir Khan had sized up to 95 kg in order to play the older version of Mahavir Phogat.
Dangal, directed by Nitesh Tiwari, also stars Sakshi Tanwar and will hit theatres on December 23. It is produced by Aamir Khan, Kiran Rao and Siddharth Roy Kapur.