The three-day celebrations of the 973rd Urs of Hazrat Ali bin Usman Sheikh Ali Hajveri, known as Data Ganj Bakhsh continued for the second day in Lahore on Sunday.
A large number of devotees are visiting the shrine to pay homage to the great saint.
The Punjab government has made special security arrangements and security officials have been deputed on rooftops to ensure the peaceful and smooth Urs celebrations.
The Urs began on Saturday when Federal Minister for Finance and Data Darbar Religious Affairs Committee Chairman Ishaq Dar inaugurated it by laying a chaddar at the shrine.
Five-tier security measures have been taken and 1,000 surveillance cameras were installed to monitor the Urs celebrations.
Around 2,000 cops have been deployed at the Darbar, walk through gates have been placed at all entrances, and security guards carrying metal detectors are frisking visitors.
The LESCO, WASA, Civil Defence Department, Rescue-1122 and the Health Department have set up camps to facilitate devotees.
Hundreds of Mashaikh and Naat khawans are participating in the Urs.