NEW DELHI: India is keeping a close watch on the ongoing air combat exercise called “High Mark” in Pakistan, which includes manoeuvers to defend against cross-border aerial strikes like the one conducted by IAF against JeM facility at Balakot in February last year. The major “High Mark” exercise includes extensive night-time flying by F-16, JF-17 and Mirage-3 fighters of the Pakistan Air Force (PAF) and landing jets on motorways near Lahore and other cities. “It’s a large-scale exercise conducted by the PAF every few years. PAF also tests its entire air defence network geared towards the Indian borders during the exercise. We are closely monitoring it,” said an officer.