Yes, you are eligible for NDA 2 2025.

The age limit for NDA 2 is between 16.5 and 19.5 years. Since your date of birth is September 6, 2006, you will be 18 years old at the time of the exam, which falls within the eligible age range.

However, please note that:

• You must have appeared or passed your Class 12 exam by the time of the NDA 2 written examination.
• There are specific physical standards that you must meet to be eligible.

It's always recommended to check the official notification for the latest information on eligibility criteria and exam dates.