The correct answer is option 1, which states that only statement 1 is correct. This means that the Indian Army is indeed organized into five Regional Commands.

Option 2, which states that only statement 2 is correct, is incorrect. The Headquarters of Northern Command is not located at Lucknow. The Headquarters of Northern Command is actually located in Udhampur, Jammu and Kashmir.

Therefore, statement 1 is correct, while statement 2 is incorrect. It is important to pay attention to the details in the question and carefully evaluate each statement before selecting the correct answer.

It is worth noting that option 3, which states that both statements 1 and 2 are correct, is also incorrect. However, option 4, which states that neither statement 1 nor 2 is correct, is also incorrect. The only correct option is option 1.