The militants were killed late last night in Quetta's Eastern Bypass area by security forces.
"The operation was launched against militants of Jaish-ul-Islam on a intelligence report in the said area late night," a source said, adding that two security men were also injured in the operation.
Rind, chief of radical group Jaish-ul-Islam, was involved in a number of sectarian killings and bomb explosions in Quetta, he said.
Heavy exchange of fire and blasts were also heard during the operation, according to local media reports.
The pilgrims mostly belonged to different parts of Punjab province.
The group has also been known to be involved in the conflict in Syria fighting with the rebels with ties to al-Qaeda.
The bodies of the militants were shifted to civil hospital Quetta for postmortem.
Rind was involved in a number of sectarian killings and bomb explosions in Quetta, the source said.
The late night operation was carried out after a surge in violence in Quetta in last two days when militants targeted members of Hazara Shia muslim community and also carried out a bomb explosion at the Bacha Khan chowk on Sunday in which one person was killed and 19 injured.
