Jammu and Kashmir police said Sunday that militants threw a grenade into security forces deployed in the Lal Chowk area of Srinagar, the summer capital of Kashmir.
Two security personnel and two civilians have received injuries from shrapnel and have been sent to a hospital, the police added.
Tensions in Jammu and Kashmir escalated in August of last year after New Delhi decided to abrogate Article 370, granting special status to the state and divided it into two federally-administered territories.
Fearing violent protests and provocation by local politicians to agitate against the decision on special status, the Narendra Modi government imposed certain restrictions while suspending the internet along with social media in the Kashmir Valley.
Most of Kashmir’s key politicians were taken into custody or put under house arrest to prevent political protests.