Exemption under section 35AC extended to a charitable health scheme, authorising eligibility for a further three year period. The Central Government designates the charitable health scheme-comprising a fifty bed hospital, general dispensary, child and mother care centre, tuberculosis clinic and medical camps addressing pneumatic heart diseases-carried out by the trust, at the stated estimated project cost, as an eligible project or scheme for a further three year period commencing from the stated assessment year, following the National Committee's recommendation and prior notifications and extensions.