S. 80DD : Medical treatment of dependent-Disability-Medical treatment of handicapped dependent-Amendment made by Finance Act, 2022 to section 80DD could not be applied retrospectively to policies taken prior to 2014 as it was not in the interest of disabled persons-Court cannot give retrospective operation to insurance contract which is a commercial contract.[S.80DD(2)(a), Finance Act, 2022, S.21, Art. 32, 142]