Police vehicles fitted with public address systems made appeals to residents not to venture out of their homes in view of the curfew.
Barbed wires have been laid at all exit points in the interiors of the city and civil lines area.
Curfew was imposed on Wednesday night after a 22-year-old youth was killed when CRPF personnel allegedly opened fire after coming under attack by a group of stone pelters in Zoonimar area.
The vehicle of CRPF personnel was on its way to SKIMS Hospital, where the victims of Bemina terror attack were admitted, when it came under attack.
The CRPF personnel were heading towards SKIMS Hospital to donate blood for their colleagues injured in the terror attack.
Two militants and five CRPF jawans were killed in the suicide attack on their camp.