In a series of tweets, he also made a strong pitch for building strong international pressure to isolate Pakistan in the wake of the terror strike and also stressed on looking into the "failure" of the Army to protect its camp near the LoC.
"We compromised to let Masood Azhar go after Indian Airlines hijack. Lesson? Never compromise with National Security," the Congress General Secretary said.
"Masood Azhar's Jaish-e-Mohammad behind the attack. Of course with full connivance of Pakistan Establishment."
"Should also look at the failure of the Army to protect its Army Camp near the LOC," he said.
"Pay homage to the Martyrs in Uri. GOI must strongly build International pressure to isolate Pakistan", the Congress leader added.
Flight IC 814, which was en route from Nepal to Delhi, was hijacked on December 24, 1999 with 176 passengers onboard. Three terrorists, including Masood Azhar, were released by the Indian government in exchange for the safe release of passengers and the crew.