Smoke rises from an explosion during the 'Vayu Shakti -2019' air exercise at Pokhran. (AP photo)An Indian Air Force fighter plane fires a missile during the 'Vayu Shakti -2019' air exercise at Pokhran. (Express Photo| Shekhar Yadav)An Indian Air Force (IAF) airborne early warning AWACS plane flies during the 'Vayu Shakti -2019' air exercise at Pokhran. (AP photo)Commandoes are seen in a drill during the 'Vayu Shakti -2019' air exercise at Pokhran. (PTI photo)Indian Air Force commandos demonstrate an operation as a helicopter flies away during the 'Vayu Shakti -2019' air exercise at Pokhran. (PTI photo)An M-17 douses fire during the 'Vayu Shakti-2019' at Pokhran, Rajasthan. (AP photo)An explosion is seen as amidst Fire Power Demonstration drill of Indian Air Force fighter planes during the 'Vayu Shakti -2019' air exercise at Pokhran. (Express Photo| Shekhar Yadav)Akash missile is fired during during the 'Vayu Shakti -2019' air exercise by IAF at Pokhran. (Express Photo| Shekhar Yadav)An Indian Air Force C-30J dispenses flares during the 'Vayu Shakti -2019' air exercise at Pokhran. (AP photo)