Official sources told that the gunmen fired upon the PDP worker Identified as Mohd Amin Dar at Gangbok.
Dar received serious bullet wounds and was taken to JVC hospital where he succumbed.
Sources said that Dar was close aide of former minister and Senior PDP leader Altaf Bukhari.
SSP Srinagar Imtiaz Ismail Parray also confirmed the incident.
A case has been registered and investigations into the matter has been initiated he said.
Soon after the attack goverment forces have launched hunt to nab the attackers.