According the police sources, the bomb was planted in a milk container tied to a motorbike.
"Two attackers parked the motorbike outside the rear gate of the shrine and fled. Five minuets later the bomb exploded. It could have been a remote-controlled bombing," informed the official.
The blast occurred near shrine of Baba Farid Shaker Ganj, which was evacuated and closed for visitors following the blast.
Rescue operation was started in the region as the rescue workers rushed to the site and took the injured to the nearby hospital.