A big revelation has been made in the Katra pilgrim bus incident. A terror group 'JKFF Freedom Fighters', has taken responsibility for the attack. A sticky bomb may have been used to carry out the attack on a bus packed with pilgrims in Katra, as per the sources. A team of the anti-terror probe agency National Investigation Agency, or NIA, visited the spot today and inspected the bus. Investigation is in the process. Watch this video for complete details.