The British comic was enjoying an outdoor adventure in the Ranthambhore region of India with his family and friends on the eve of the couple's wedding on Saturday (23Oct10).
But the festivities soured when the star's bodyguards allegedly clashed with a group of photographers, who were following the party and taking pictures.
The snappers claim a member of Brand's entourage approached their vehicle, punched the driver in the face and stole his car keys.
Photographer Mustafa Quraishi was then allegedly beaten as he attempted to retrieve the keys, while two other men claim to have been assaulted as they came to his rescue.
The incident has now been reported to the Ranthambhore police force, who have confirmed they plan to question Brand and any other witnesses who were present.
A statement from Ranthambhore police reads, "The photographers have filed an official complaint of assault and all witnesses, including Mr. Brand, will be questioned about this. Police officers will be going to the hotel... to advise the alleged perpetrators of an arrest and that a case has been filed.
"It is certainly not a good thing because an Indian photographer has been beaten up in his own country by a foreigner. The photographer would like an apology and if the perpetrator is willing to apologise then we can take back the case."