Police also say they have arrested 15 people including three brothers of the suspected Sunday evening suicide bomber.
They said a CNIC was found from the scene of the crime and it is suspected that it belonged to Muhammad Yousaf Farid, son of Ghulam Farid, a resident of Fateh Sehrani, Basti Baitwala in Muzaffargarh.
According to the card, he was born in January 1. 1988.
The three brothers and a paternal uncle of Yousaf were taken into custody during a raid conducted by the Counter-Terrorism Department (CTD) of Pakistan police.
According to preliminary investigation, the bomber had been teaching at a seminary for eight years in Lahore after completing his religious education in Dera Ghazi Khan.
His father, Farid, is a greengrocer. The suspect was out of touch with his family for the last two months. The Counter Terrorism Department is going to take up the case.