Statement (c) is correct regarding Indian Air Force. It has a separate Maintenance Command in Nagpur. Farkhor Air Base is a military air base located near the town of Farkhor in Tajikistan, operated by the Indian Air Force. Farkhor is India's first and only air base outside its territory. So, statement (a) is incorrect because it uses the term ‘many’. Indian Air Force regularly engages itself in bilateral exercises with friendly nations. So, statement (b) is also incorrect. In recognition of his services, the Government of India conferred the rank of the Marshal of the Air Force onto Arjan Singh in January 2002, making him the first and the only 'Five Star' rank officer with the Indian Air Force. So, statement (d) is also incorrect. Commands of the Indian Air Force