Police said that Taara Lal, Heera Chand and a security guard of the liquor store were killed in the shooting, which took place at Abul Hassan Isphahani Road.
An eye witness of the crime said that the gunmen who were on a motorcycle opened fire at the store.
It seems an extortion case, police sources said.
Home Minister Sohail Anwar Siyal while taking notice of the firing incident, has asked DIG East to submit his investigation report.