Yes, you can find previous year question papers of the SSC CHSL Tier-I Exam for different regions, including the Northern, Southern, Eastern, and Western regions. Here is how you can access these question papers:

1. Official SSC Website:
- Visit the official website of the Staff Selection Commission (SSC) at https://ssc.nic.in/.
- On the homepage, navigate to the 'Previous Year Question Papers' section.
- Click on the link for the CHSL Tier-I Exam.
- You will find a list of question papers for various regions, including Northern, Southern, Eastern, and Western regions.
- Choose the desired region to access the previous year question papers.

2. EduRev:
- EduRev is an online learning platform that provides a wide range of educational resources, including previous year question papers for various exams.
- Visit the EduRev website at

https://www.edurev.in/. https://www.edurev.in/.

- On the homepage, search for "SSC CHSL Tier-I Exam previous year question papers" in the search bar.
- You will be directed to a page with a list of question papers from different regions.
- Select the region you are interested in, such as Northern, Southern, Eastern, or Western region.
- Click on the link to access the question papers for that specific region.

3. Online Forums and Groups:
- Join online forums and groups dedicated to SSC exams, especially the CHSL Tier-I Exam.
- These forums and groups often have members who share previous year question papers.
- Participate in discussions and ask for question papers from specific regions like Northern, Southern, Eastern, or Western region.
- The members of these forums and groups may provide you with the question papers or guide you to the right resources.

4. Coaching Institutes:
- Contact coaching institutes that specialize in SSC exam preparation.
- Many coaching institutes keep a collection of previous year question papers for their students.
- Enquire if they have question papers for the SSC CHSL Tier-I Exam from different regions.
- Some institutes may provide you with the question papers or allow you to access them at their premises.

Remember to solve these previous year question papers as part of your exam preparation. They will give you a good understanding of the exam pattern and help you identify the areas where you need to focus more.