Section 35AC eligibility extended for rural eye hospital scheme; tax-exempt donations permitted for a further period. The Central Government specifies the scheme of running the Vizhiagam Rural Eye Hospital at Salaigramam by Helen Keller Service Society for the Blind as an eligible project under section 35AC for a further period commencing with the assessment year 2001-2002, following the National Committee's recommendation that the project is being executed properly and is likely to extend beyond the initial three-year period.