What was the purpose of the changes made by the Constitution (Eightieth Amendment) Act, 2000?
The purpose of the changes made by the Constitution (Eightieth Amendment) Act, 2000 was to substitute "articles 268 and 269" with "articles 246A and 269A" in clause (2) of article 270. This substitution occurred in the context of tax levied and collected by the Union under certain clauses, which was then used for payment of taxes and apportioned to the Union and States.