Armaan Kohli was earlier dating actor Tanisha Mukerji.
According to reports, the couple had a fight over financial issues on Sunday and Mr Kohli, in a fit of anger, pushed Ms Randhawa down a flight of stairs. She has alleged that Mr Kohli grabbed her hair and hit her head against the floor.
Ms Randhawa, who accused the actor of assault, has suffered head injuries and has been hospitalised in Kokilaben Dhirubhai Ambani hospital. A case has been registered under sections 323, 326, 504 and 506.
The two have been in a live-in relationship since 2015. They met through a common friend and soon started dating.
He was launched by his father and veteran filmmaker Rajkumar Kohli in Virodhi (1992). He went on to do forgettable films and took another shot with Jaani Dushman (2002) and LOC: Kargil (2003). He then vanished from the scene only to resurface in Salman Khan’s TV show Big Boss.
During the TV show, he started dating actor Tanishaa Mukerji. The two, however, decided to part ways due to alleged differences in temperament and personality.