Arjun posted a picture from his dressing room on his Instagram story and wrote, "Back To Panipat.'
In the picture, the 33-year-old can be seen flaunting his post-workout body in a black vest and track pants, coupled with a cap.
Also starring Sanjay Dutt and Kriti Sanon, 'Panipat' is based on the third Battle of Panipat fought between the Maratha empire lead by Sadashiv Rao Bhau and invading forces of Ahmad Shah Abdali, the King of Afghanistan.
The battle took place on January 14, 1761, at Panipat, and is considered to be one of the most eventful battles fought in the 18th century.
The film helmed by Ashutosh Gowariker is slated to release on December 6, 2019.
