Medical deduction limits expanded with new allowances for very senior citizens and aggregate caps on insurance and treatment claims. Amendment raises statutory ceilings for deductions under section 80D, substituting higher limits for insurance premium deductions and for medical expenditure, and adds clauses permitting deduction of medical expenditure for a very senior citizen or parents where no insurance has been paid for that person. It prescribes aggregate caps combining insurance premiums and medical expenditure, modifies the HUF provision to permit separate aggregates for premiums and medical expenditure subject to an overall cap, revises cross-references to include very senior citizens, and inserts definitions for senior and very senior citizens.