ISLAMABAD: A slew of knee-jerk punitive measures from India, angry rhetoric from its politicians, and sabre-rattling from its jingoistic media have sharply escalated tensions between the two hyphenated neighbours on Wednesday. Prime Minister Shehbaz Sharif convened an emergency meeting of the principal national security forum on Thursday (today) to cobble up Pakistan’s response. Attendees at the National Security Committee (NSC) …