The document discusses Centre-State relations in India based on the Constitution. It outlines that legislative powers are divided between the Union and States based on territory and subject matter. There are three lists - the Union List of subjects Parliament can legislate on, the State List for state legislatures, and the Concurrent List where both can legislate. Residual powers belong to Parliament. Exceptions allow Parliament to legislate on State List topics in some cases. The lists are interpreted broadly and harmoniously to avoid conflicts between legislative jurisdictions.