Three terrorists were killed in an encounter with security forces in Tral area of Pulwama district of Jammu and Kashmir on Sunday. One of the killed terrorists is said to be Jaish-e-Mohammed man, Mudasir Ahmed Khan, alias 'Mohd Bhai, who has been identified as the brain behind the Pulwama attack. 23-year-old Khan, an electrician with a graduate degree hailing from Pulwama district, arranged the vehicle and explosives used in the terror strike. However, the official confirmation is yet to come out.