The actress was busy with the shoot inside the studio when the incident happened at around 2130 hours Tuesday night, police said.

Seven of the hired audience were arrested, they said adding efforts were on to nab the rest.

Hailing from the slums in suburbs of Andheri and Goregaon, they were paid Rs 100 each for sitting through the day in the studio. They were disrupting the shoot of musical programme Sa Re Ga Ma Pa at the Famous Studios in Central Mumbai and were told to leave.

"The production company asked them to leave the set immediately. As a protest, they ransacked the reception area.

"They also broke window panes of three cars parked nearby, including that of Pallavi Joshi," a police official said.