Two soldiers and three freedom fighters were killed in an overnight gunbattle in Kashmir in the latest bloodshed.
Itoo, often called a "vintage terrorist" as he joined Hizbul Mujahideen in 1996, had surrendered in 2007 and later released on parole in 2014.
Officials say at least 130 fighters and 39 soldiers have died in clashes so far this year after the Indian army launched a major operation against armed groups in the southern part of the region.
In a separate incident early Sunday, three more Indian forces' personnel were injured when a patrol party came under attack in Hajin area of Bandipora district. Cordon-and-search operations have begun in the village.
The gunfight also left two soldiers dead while unknown number of militants reportedly escaped from the spot.
According to Kashmir Media Service, the youth were martyred by the troops during a siege and search operation in Awneera area of the district.
Seven civilians had sustained pellet injuries on Saturday when protesters engaged the security forces in clashes to break the cordon around the site of the gunfight.
The injured was taken to an Army hospital in Drugmulla where doctors stated his condition to be stable.