When did this change take effect?
The changes mentioned in the context occurred at different times:

- Entry 7 (Bombay Reorganisation Act, 1960): Effective from 1st May 1960.
- Entry 8 (Mysore State (Alteration of Name) Act, 1973): Effective from 1st November 1973.
- Entry 9 (Orissa (Alteration of Name) Act, 2011): Effective from 1st November 2011.
- Entry 10 (Punjab Reorganisation Act, 1966): Effective from 1st November 1966.
- Entry 11 (Uttar Pradesh Reorganisation Act, 2000): Effective from 9th November 2000.
- Entry 12: No specific date mentioned.
- Entry 13 (Uttaranchal (Alteration of Name) Act, 2006): Effective from 1st January 2007.
- Entry 14 (Jammu and Kashmir Reorganisation Act, 2019): Effective from 31st October 2019.
- Entry 15: Changes took effect on the same day as Entry 14, i.e., 31st October 2019.
- Entry 16 (State of Nagaland Act, 1962): Effective from 1st December 1963.