India, Nov. 22 -- A detailed investigation into the November 19 Nagrota encounter, in which four terrorists were gunned down, revealed the involvement of Jaish-e-Mohammed (JeM) operational commander Kasim Jan, the principal accused in the 2016 Pathankot airbase attack, senior Indian officials said on Saturday.

Jan is one of the main launch commanders of Jaish terrorists pushed into India and has links with underground workers all over south Kashmir. He reports directly to Mufti Rauf Asghar, the de facto chief of the UN-designated global terrorist group.

According to Indian counterterrorism officials, with the withdrawal of US forces from Afghanistan and resurgence of the Taliban, its ideological sibling Jaish has become hyperactive acro...