Hello dear student

Yes you can apply income Certificate without ration card.

I mention here some important documents.

• Identity proof.
• Self declaration from the applicant.
• Residential Proof: Residential Certificate issued by Local administration office/ Aadhar card/ Passport / Driving License / Ration Card / Govt. Id card / Defence ID Card / PAN Card.
• Age proof (birth certificate / school certificate)
• Income Proof: Salary certificate, Income proof from competent authority, income tax return acknowledgement.
• Applicant passport size photograph.
• Additional documents if any According to State government policy.
• Education records duly signed
• Aadhaar card
• Land revenue receipt (in case of farmer if available).

Hope that's helpful

Best of luck