Yes, you can access previous year's question papers for NDA from various coaching institutes. Here's how:

1. Online Platforms:
- Several coaching institutes and educational websites offer online platforms where you can find previous year's question papers for NDA.
- One such platform is EduRev, which provides a wide range of study material, including previous year's question papers for NDA. You can access these papers by visiting their website.

2. Coaching Institute Websites:
- Many coaching institutes have their own websites where they provide study material and resources for NDA preparation.
- You can visit the websites of renowned coaching institutes like Major Kalshi Classes, Oliveboard, etc., and check if they provide previous year's question papers for NDA.
- Some coaching institutes may require you to sign up or provide your contact details before accessing the question papers.

3. Study Material Providers:
- Apart from coaching institutes, there are study material providers who offer question papers for competitive exams like NDA.
- These study material providers often have question papers from previous years as part of their offerings.
- EduRev is a reliable study material provider that offers previous year's question papers for NDA, along with detailed solutions and explanations.

4. Online Forums and Communities:
- Online forums and communities dedicated to NDA preparation can be a good source for accessing previous year's question papers.
- These platforms allow students and aspirants to share study material, including question papers.
- EduRev has a vibrant community of students and educators where you can find and share previous year's question papers for NDA.

Remember:
- While accessing previous year's question papers can be beneficial for your NDA preparation, it is important to use them as a supplement to your overall study plan.
- Make sure to also focus on understanding the concepts, practicing mock tests, and referring to standard study materials.
- Utilize these question papers to analyze your strengths and weaknesses, and work on improving your performance in specific areas.
- EduRev provides a comprehensive platform for NDA preparation, offering not only previous year's question papers but also study notes, mock tests, and other resources to help you excel in the exam.