Which of the following is/are correctly matched in terms of equivalent rank in the three services of Indian Defence forces?

	Army	Airforce	Navy
1.	Brigadier	Air Commander	Commodore
2.	Major General	Air Vice Marshal	Vice Admiral
3.	Major	Squadron Leader	Lieutenant Commander
4.	Lieutenant Colonel	Group Captain	Captain

Select the correct answer using the code given below.

The correct option is 3 only.

To understand why only statement 3 is correctly matched, let us analyze the equivalent ranks of the Commissioned Officers in the three services of the Indian Armed Forces (Army, Air Force, and Navy) from the highest to the lowest rank:

1. Brigadier Rank Equivalents:
- Army: Brigadier
- Air Force: Air Commodore (not Air Commander)
- Navy: Commodore
Since the Air Force rank is listed as "Air Commander" instead of "Air Commodore" in statement 1, it is incorrect.

2. Major General Rank Equivalents:
- Army: Major General
- Air Force: Air Vice Marshal
- Navy: Rear Admiral (not Vice Admiral)
Since the Navy rank is listed as "Vice Admiral" instead of "Rear Admiral" in statement 2, it is incorrect. (Vice Admiral is equivalent to Lieutenant General in the Army).

3. Major Rank Equivalents:
- Army: Major
- Air Force: Squadron Leader
- Navy: Lieutenant Commander
This matches statement 3 perfectly, so statement 3 is correct.

4. Lieutenant Colonel Rank Equivalents:
- Army: Lieutenant Colonel
- Air Force: Wing Commander (not Group Captain)
- Navy: Commander (not Captain)
Since statement 4 matches Lieutenant Colonel with Group Captain (equivalent to Colonel) and Captain (equivalent to Colonel), it is incorrect.

Therefore, only statement 3 is correctly matched.