Hello, Aspirant...

If you meet the eligibility standards, including being a 'generic' candidate (not under reservation for SC, ST, or OBC), you can apply for ews.

The annual gross income of your household must be less than Rs. 8 lakhs. This includes all sources of income for the fiscal year preceding the exam application, such as agriculture, salary, corporation, and so on. Your family should not own a residential flat that is 1000 square feet or larger.

And there's more.

I hope it was useful.