The eligibility for the EWS certificate are:

• The annual income of the family of candidate should not exceed 8lakh per annum.
• The family should not hold 5 or more than 5 acres of land.
• The family shouldn't have a residental area more than 1000 sq feet.

As you are mentioning your income that doesn't mean your total family income is with in the range of 8 LPA. So if you are working then you have to submit your fathers income as well in order to show that your family income is lesser than 8 LPA.

I hope this helps. All the very best for your future endeavors!