"A team of officers has gone to Saif’s residence for further investigations and the further course will be decided later," Assistant Commissioner of Police Iqbal Shaikh of the Colaba region, which lodged the complaint, told IANS.
The incident occurred shortly after midnight Tuesday when Saif, along with his girlfriend Kareena Kapoor and some other friends, was sitting in the Wasabi Restaurant at the Taj Mahal Hotel.
Disturbed by their ruckus, the patron, Iqbal Sharma requested them to keep their voices down.
Apparently enraged by this, Saif allegedly punched Sharma on the face, reportedly breaking his nose.
Later, Sharma went to the Colaba police station and lodged a complaint against Saif.
Saif has been booked under, among others, Section 325 of the Indian Penal Code (assault), but Shaikh declined to specify whether he would be arrested, saying: "Investigations are in progress."