Civilian airports were reopened and stocks jumped in both nations, signs of confidence that the agreement to halt the most alarming fighting in decades was holding.

Pakistani officials have said Saturday’s ceasefire with India reestablished deterrence. But New Delhi insists the rules of engagement have irrevocably changed.

The military operations chiefs of India and Pakistan held talks by phone on Monday evening, broadcaster CNN-News18 said, two days after the nuclear-armed neighbours reached a ceasefire agreement following intense fighting last week.