Section 80U provides a tax deduction for a person suffering from a disability. The level of disability should be 40 per cent or more as certified by the notified medical authority to be able to avail of the deduction. The deduction is Rs 75,000 for people with disabilities and Rs 1,25,000 for severe disabilities (>80 per cent). Other than valid certification, no other supporting document or proof of expenses incurred is not required. Disability has been defined to include physical challenges like blindness, leprosy-cured, hearing impairment, loco-motor disability, mental illness, autism mental retardation, etc.