Is there any chance I can apply for Ireland by showing other documents instead of ITRs since my father won't file any ITRs?

Yes, you can apply for an Ireland student visa without your father's ITRs if you provide strong alternative financial documents.

To prove funds, you can submit:
- Recent bank statements (in your or your father's name) showing stable savings
- Fixed deposits
- Education loan sanction letters
- Sponsorship letters

You must clearly show access to at least €10,000 for living expenses, plus evidence of tuition fee payment. Any large or irregular deposits in bank statements should be explained. While ITRs help, they are not mandatory if your alternative proof is strong.