Police said a tip-off led them to the house in Pulwama district where Tantray was hiding and two other suspected militants were hiding. He spent some time in Tihar Jail before being shifted to Srinagar's Central Jail. It was night long gun battle between the two JeM militants and police who found Noor's dead body in the morning.
Director General of Police (DGP) Dr S P Vaid in a tweet said that "Encounter going on since last evening in Awantipura district".
In July 2017, after the Aripal encounter in which three JeM terrorists were killed, Tantray went underground and soon became the key man of the terror outfit in coordinating and organizing attacks at different places, he said.
JeM militant chief operational commander Noor Mohammed Tantray. Tantray was released on parole in 2015, after which the Jammu and Kashmir High Court extended his parole several times.
Consequently, he remained in Tral at South Kashmir and became a major overground worker of the JeM in the region, the police said.
Defence spokesperson Rajesh Kalia told The Indian Express that Tantray was on the Army's "wanted list" also.
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Noor was also one of the chief architects of the Border Security Force (BSF) camp attack, near the Srinagar airport in October this year. Eight security personnel and three militants were killed in that attack.
A police officer who arrested Tantray in Delhi in 2003 said he had originally been recruited because at 4ft 2inches (1.27m) he did not look like a militant.
He was also involved in the grenade attack carried on State PWD Minister Naeem Akhtar's cavalcade in Tralon 21 September.
Monday's attack was reportedly launched in response to the death of four Indian soldiers, including an Army major, in alleged unprovoked Pakistani firing along the LoC. "Besides, he was wanted in a number of terror offences in south and central Kashmir", the statement said.
Thousands of people attended slain militant commander's funeral in home town Tral.