"Curfew and restrictions have been imposed in many parts of the Valley including Srinagar city," a senior police official told IANS.
"People are advised to cooperate with the administration to prevent anti-social elements fro causing trouble."
Life across the Valley remained paralysed for the 21st day as the separatists extended their protest shutdown till July 31.
Separatists have, however, said people should engage in activities like shopping for few hours after 7 p.m. during this period.
On Wednesday, curfew was only imposed in three south Kashmir districts including Anantnag.
In Srinagar, some semblance of normal life could be seen as private transportation and pedestrian movements were witnessed in many areas.
Read More: Curfew, restrictions continue in Kashmir
Chief Minister Mehbooba Mufti said on Wednesday that the security forces had no knowledge about Hizbul commander, Burhan Wani's presence inside the house in Bsmdoora village of Anantnag district where he was killed on July 8.
"If the security forces knew about Burhan's presence inside the house, he would have been given a chance to surrender," Mehbooba said.
Fifty people including 48 civilians and two policemen have been killed since July 9.