This blog post details a critical update for Indian taxpayers claiming deductions under Sections 80DD and 80U for disability for Assessment Year (AY) 2025-26. It highlights the new mandatory requirement to furnish the disability certificate's acknowledgement number in the Income Tax Return (ITR). The post explains the significance of this change for verification and compliance, provides a clear checklist for taxpayers, and outlines essential documentation beyond the acknowledgement number, ensuring a smoother tax filing process under the Old Tax Regime.