The decision was made during a PTI political committee meeting in Islamabad, where the party leadership expressed strong opposition to the government's proposed changes to the constitution.
The Khalistan movement, seeking a separate Sikh state, has fueled tension between the two nations for decades. India has long criticized Canada for allegedly harboring Khalistani extremists
Minutes after the news of Payne's death broke, distraught fans -- most in their 20s and 30s -- gathered near the scene in the Argentine capital, where medical teams were at work.
