According to details, the enraged locals besieged civil hospital and chanted slogans against the administration. They also put traffic out of gear amid absence of security officers.
The protesters, who also held sit-in at Steel Bagh Chowk, demanded to hang the culprit in public to guard against recurrence of such incident .
Meanwhile, high court bar association in Islamabad also announced strike and condemned the mishap. The lawyers did not attend proceedings in the courts on Thursday.
Earlier, Punjab Chief Minister Shahbaz Sharif reached the house of seven-year-old Zainab and assured the bereaved family of provision of justice in the case.
The spokesman for Punjab government, Malik Muhammad Ahmad Khan and top police officials also accompanied CM Shehbaz during the visit.
Zainab was kidnapped six days ago from Road Kot when her parents left for Saudi Arabia to perform Umrah. The girl was strangled to death after being raped. Police officers recovered her body from a garbage heap near Zaki Ada.
Her funeral prayer was led by Pakistan Awami Tehreek (PAT) Chief Tahir-ul-Qadri and offered by flocks of people.
Many politicians, activists condemned the death of the girl and urged to bring the culprits to justice in tweets that flooded Twitter.
It is to be mentioned here that as many as 12 children have been killed in rape related incidents in Kasur in one year whereas police officers have killed three people involved in such criminal activities.