Exemption limit for co-operative society profits revised, raising the threshold for consumers co-operative societies while retaining others. The amendment substitutes the single monetary limit for exemptable profits and gains with a two-tier structure: a higher exemptable limit for consumers co-operative society and the original limit for other co-operative societies, and defines 'consumers co-operative society' as a society for the benefit of the consumers; the substitution operates from the statute's specified commencement date.