Exemption under section 35AC extended for specified special education centre; project cost revised upward by notification. Section 35AC exemption for the Shishu Sarothi Spastics Society's Guwahati centre for special education is extended for a further three years from the assessment year 1999 2000 following a National Committee recommendation that execution is proper and the project will extend beyond six years; the notification concurrently amends the earlier specification by increasing the notified project cost.