Consider the following statements regarding the Armed Forces: 1. First batch of women pilots was commissioned in Indian Air Force in 1996. 2. Officers' Training Academy is located in Nagpur. 3. Southern Command of Indian Navy has its Headquarters at Chennai. 4. One of the Regional Headquarters of Coast Guard is located at Port Blair. Which of these statements are correct?

1. Statement 1 is incorrect: The first batch of women pilots was commissioned into the transport fleet of the Indian Air Force (IAF) in December 1994, not 1996. 2. Statement 2 is incorrect: The Indian Army's main Officers' Training Academy (OTA) is located in Chennai, with another in Gaya. The National Academy of Defence Production (NADP) is in Nagpur, but not the OTA. 3. Statement 3 is incorrect: The Headquarters of the Southern Command of the Indian Navy is located in Kochi, Kerala, not Chennai. 4. Statement 4 is correct: The Indian Coast Guard operates through several Regional Headquarters. The Regional Headquarters (Andaman & Nicobar) is located at Port Blair. 5. Therefore, only statement IV is correct.