Exemption under section 35AC: hospital development scheme's eligibility extended further; approved project cost remains unchanged. The Central Government specifies the hospital equipment purchase and development project at Ambawadi, Ahmedabad, executed by Thakershy Charitable Trust, as an eligible project for Income-tax exemption pursuant to the statutory provision; this specification extends eligibility for a further three-year period from the stated financial year on the National Committee's recommendation and leaves the previously approved project cost and corpus fund unchanged.