Bollywood superstar Salman Khan's bodyguard Gurmeet Singh alias Shera and three of his accomplices have been booked for assaulting a man in Andheri West early Wednesday morning, an official said in Mumbai.

According to a complaint by a 25-year-old resident of Vile Parle, Akhtar U. Qureshi, Shera was driving in his Audi car along with two friends on Link Road when he saw him.

Shera called Qureshi who was talking on the phone, and the duo entered into a heated argument over some issues, around 2 a.m.

Shera and his accomplices allegedly hammered Qureshi with a bat and the butt of a pistol and then escaped from there.

Later, Qureshi went to DN Nagar police station and lodged a complaint of assault against Shera and his three accomplices, which resulted in his collar bone being broken.

They have been booked under various sections of Indian Penal Code for assault and also under the Arms Act.

The matter is under investigation, Deputy Commissioner of Police Dudhe added.

The high-profile Shera has been a loyal and trusted bodyguard of Salman Khan for nearly two decades, prompting the Bollywood star to dedicate his 2011 superhit film, "Bodyguard" to Shera.