<s>[INST] When was the Constitution (Seventh Amendment) Act, 1956 enacted and what change did it make in the definition of "Union territory"? [/INST] The Constitution (Seventh Amendment) Act, 1956 was enacted on November 1st, 1956. It made a change in the definition of "Union territory" by removing the reference to Part A or Part B of the First Schedule and instead included any other territory comprised within the territory of India but not specified in that Schedule as part of a Union Territory. </s>