Two unidentified gunmen barged into the Malabar Hill house of leading film producer F C Mehra and fired shots killing his maidservant.
In another incident, a suspected extortionist fired on a leading builder's office injuring one person, the police said.
Mehra's house is opposite the residence of Chief Justice Mumbai high court C K Thakkar. The gunmen, said the police, fired indiscriminately injuring the servant, who later succumbed to her injuries.
In the other incident, two unidentified youth riding a motorcycle fired indiscriminately at the office of Kukreja Builder near Ambedkar Garden in suburban Chembur injuring a supervisor.
The injured, identified as Vashu Parthi, has been admitted to Sion hospital, the police said.