Police said Javaid Ahmad Dar, 23, of Wadwan village in Badgam district who was injured in clashes between a protesting mob and security forces at Narbal near the Srinagar-Muzaffarad highway on August 5, succumbed in a Srinagar hospital earlier in the day.
Meanwhile, protesters held a massive rally in Kulgam district shouting pro-Azadi slogans.
Separatist called marches were also held in Qaimoh, Khudwani and Redwani towns.
Over 80 people were injured in clashes on Sunday in Pulwama district's Karimabad village
Kashmir remained shut for the 65th day with authorities deploying security personnel in Srinagar and other places in the Valley to maintain law and order on Sunday.
However, there was no curfew anywhere in the Valley.
Around 11,500 others have been injured since July 9.
