What are the temporary, transitional and special provisions mentioned in Part XXI?
The temporary, transitional and special provisions mentioned in Part XXI include the following:

1. Temporary power to Parliament to make laws with respect to certain matters in the State List as if they were matters in the Concurrent List.
2. Temporary provisions with respect to the State of Jammu and Kashmir.
3. Special provision with respect to the States of Maharashtra and Gujarat.
4. Special provision with respect to the State of Nagaland.
5. Special provision with respect to the State of Assam.
6. Special provisions with respect to the State of Manipur.
7. Special provisions with respect to the State of Andhra Pradesh or the State of Telangana.
8. Establishment of Central University in Andhra Pradesh.
9. Special provisions with respect to the State of Sikkim.
10. Special provision with respect to the State of Mizoram.
11. Special provision with respect to the State of Arunachal Pradesh.
12. Special provision with respect to the State of Goa.
13. Special provisions with respect to the State of Karnataka.
14. Continuance in force of existing laws and their adaptation.

These provisions are aimed at addressing specific issues or challenges faced by certain states during the transition period after the Constitution was enacted.