Deduction for infrastructure and housing expanded to include telecom, refining and housing projects; exclusivity of deductions clarified for assessable profits. Amendments to Section 80-IA expand eligible activities to include specified telecommunication services (including radio paging and domestic satellite), refining alongside commercial production, and specified housing-project development; insert a definition of 'domestic satellite'; extend and deem certain eligibility periods; condition housing-project eligibility on approval, minimum plot size and maximum built-up area, commencement and completion windows; grant one hundred per cent deduction for qualifying housing projects; and preclude duplication of deductions under the Chapter.