Milkha's talent and dedication soon earn him a spot in the Indian Army, where he gets the opportunity to train with the best athletes in the country. Under the guidance of his coach, Havildar Abdul Khaliq, Milkha transforms into a world-class athlete. The film showcases his rigorous training regimen, his struggles, and his triumphs.

The film also highlights the sacrifices made by Milkha Singh and his family, particularly his sister, who played a crucial role in his journey. The movie showcases the importance of family support and the role it plays in an athlete's success.

The film also explores Milkha's personal life, including his romance with Birinder Kaur. The chemistry between Farhan Akhtar and Sonakshi Sinha is palpable, and their love story adds an emotional depth to the film.

"Bhaag Milkha Bhaag" is more than just a sports film; it is a story of resilience, perseverance, and the human spirit. The movie conveys the message that with hard work and determination, one can overcome any obstacle and achieve success.

The movie takes a dramatic turn when Milkha Singh participates in the 1960 Rome Olympics, where he finishes at the bottom of his heat. However, this setback does not deter him, and he goes on to win numerous national and international titles, including the Commonwealth Games and the Asian Games.