When did these changes come into effect?
The changes mentioned in the context were brought into effect on various dates as follows:

1. Ins. by the Bombay Reorganisation Act, 1960 (11 of 1960), s. 6 (w.e.f. 1-5-1960).
2. Subs. by the Mysore State (Alteration of Name) Act, 1973 (31 of 1973), s. 5, for "10. Mysore" (re-numbered as "13") (w.e.f. 1-11-1973).
3. Subs. by the Orissa (Alteration of Name) Act, 2011 (15 of 2011), s. 7 for "Orissa" (w.e.f. 1- 11-2011).
4. Subs. by the Punjab Reorganisation Act, 1966 (31 of 1966), s. 9 for "11" (w.e.f. 1 - 11-1966).
5. Subs. by the Uttar Pradesh Reorganisation Act, 2000 (29 of 2000), s. 7 for "34" (w.e.f. 9- 11-2000).
6. Ins. by s. 7, ibid. (w.e.f. 9-11-2000).
7. Subs. by the Uttaranchal (Alteration of Name) Act, 2006 (52 of 2006), s. 5 for "Uttaranchal" (w.e.f. 1-1-2007).
8. Entries 22 to 31 re-numbered as entries 21 to 30, respectively by the Jammu and Kashmir Reorganisation Act, 2019 (34 of 2019), s. 8 (w.e.f. 31-10-2019).
9. Ins. by the State of Nagaland Act, 1962 (27 of 1962), s. 6 (w.e.f. 1-12-1963).