Generally, yes, interest is applicable on arrears. However, if your specific GPF deposits do not carry any interest (meaning your fund balance doesn't earn interest), then you will not be required to pay interest on any arrears.
Source: GPF Rule 10
Do I always have to pay interest on missed GPF payments?
Related Questions
What happens if I retire or resign before the full amount is recovered?
What if I use the policy as collateral for a personal loan?
What if my alternative payments (like insurance premiums) exactly match or exceed my minimum GPF subscription?
What if my policy gives me a choice to take the bonus now or let it accumulate?
Can I get my GPF paid to my bank account outside India?
This answer is for informational purposes only and does not constitute legal advice. Always refer to the original rules and consult competent authorities for official interpretation.