What were the changes introduced by the Constitution (Seventh Amendment) Act, 1956?
The Constitution (Seventh Amendment) Act, 1956 introduced the following changes:

1. It substituted "the President" for "the Governor" in Article 320(2), which relates to the appointment of a Public Service Commission in a State.
2. It inserted new Articles 8A and 8B, which related to the continuance of the existing Public Service Commissions of certain States beyond January 25, 1957, for a further period not exceeding two years from that date.
3. It amended Article 361 by adding a new clause (4), which provided that no criminal proceeding shall be initiated against the President or Governors after they cease to hold office except on a complaint lodged with the previous sanction of the President in the case of the President and with the previous sanction of the Governor concerned in the case of Governors.
4. It amended Article 361(2) by substituting "the Parliament" for "the Government of India".
5. It amended Article 367(2)(a) to substitute "the President" for "the Governor".
6. It amended Article 370(3)(b) to substitute "the President" for "the Governor".
7. It amended Article 371 by substituting "the President" for "the Governor" in clause (2).
8. It amended Article 371A by substituting "the President" for "the Governor" in clause (2) and by substituting "an Act of Parliament" for "the Legislature of the State" in clause (3).
9. It added a new sub-clause (3)(c) to Article 75, which relates to salaries and allowances of Ministers for the Union. This amendment provides that the salaries and allowances payable to the Ministers shall be such as may be determined by Parliament by law and until they are so determined, they shall be the same as those specified in the Second Schedule for Members of Parliament.
10. It added a new sub-clause (3)(d) to Article 75, which relates to salaries and allowances of Ministers for the Union. This amendment provides that the salaries and allowances payable to the Ministers shall be such as may be determined by Parliament by law and until they are so determined, they shall be the same as those specified in the Second Schedule for Members of Parliament.
11. It added a new sub-clause (4) to Article 75, which relates to salaries and allowances of Ministers for the Union. This amendment provides that any person who is a member of either House of Parliament or of the Legislature of any State shall not be eligible for appointment as a Minister for the Union until they have resigned from their seat in that House or the State Legislature, as the case may be.
12. It added a new sub-clause (5) to Article 75, which relates to salaries and allowances of Ministers for the Union. This amendment provides that if a member of either House of Parliament is appointed as a Minister for the Union, he shall not hold any office of profit under the Government of India or any State except with the permission of the President.
13. It added a new clause (4) to Article 80, which relates to the powers and jurisdiction of members of a police force belonging to any State to any area outside that State. This amendment provides that no member of a police force belonging to any State shall exercise powers and jurisdiction in any area outside that State without the consent of the Government of the State in which such area is situated.
14. It added a new clause (5) to Article 80, which relates to the powers and jurisdiction of members of a police force belonging to any State to railway areas outside that State. This amendment provides that no member of a police force belonging to any State shall exercise powers and jurisdiction in railway areas outside that State except with the permission of the Central Government.
15. It added a new clause (6) to Article 80, which relates to the extension of the powers and jurisdiction of members of a police force belonging to any State to railway areas outside that State. This amendment provides that no member of a police force belonging to any State shall exercise powers and jurisdiction in railway areas outside that State except with the permission of the Central Government.
16. It added a new clause (7) to Article 80, which relates to the extension of the powers and jurisdiction of members of a police force belonging to any State to railway areas outside that State. This amendment provides that no member of a police force belonging to any State shall exercise powers and jurisdiction in railway areas outside that State except with the permission of the Central Government.
17. It added a new clause (8) to Article 80, which relates to the extension of the powers and jurisdiction of members of a police force belonging to any State to railway areas outside that State. This amendment provides that no member of a police force belonging to any State shall exercise powers and jurisdiction in railway areas outside that State except with the permission of the Central Government.
18. It added a new clause (9) to Article 80, which relates to the extension of the powers and jurisdiction of members of a police force belonging to any State to railway areas outside that State. This amendment provides that no member of a police force belonging to any State shall exercise powers and jurisdiction in railway areas outside that State except with the permission of the Central Government.
19. It added a new clause (10) to Article 80, which relates to the extension of the powers and jurisdiction of members of a police force belonging to any State to railway areas outside that State. This amendment provides that no member of a police force belonging to any State shall exercise powers and jurisdiction in railway areas outside that State except with the permission of the Central Government.
20. It added a new clause (11) to Article 80, which relates to the extension of the powers and jurisdiction of members of a police force belonging to any State to railway areas outside that State. This amendment provides that no member of a police force belonging to any State shall exercise powers and jurisdiction in railway areas outside that State except with the permission of the Central Government.
21. It added a new clause (12) to Article 80, which relates to the extension of the powers and jurisdiction of members of a police force belonging to any State to railway areas outside that State. This amendment provides that no member of a police force belonging to any State shall exercise powers and jurisdiction in railway areas outside that State except with the permission of the Central Government.
22. It added a new clause (13) to Article 80, which relates to the extension of the powers and jurisdiction of members of a police force belonging to any State to railway areas outside that State. This amendment provides that no member of a police force belonging to any State shall exercise powers and jurisdiction in railway areas outside that State except with the permission of the Central Government.
23. It added a new clause (14) to Article 80, which relates to the extension of the powers and jurisdiction of members of a police force belonging to any State to railway areas outside that State. This amendment provides that no member of a police force belonging to any State shall exercise powers and jurisdiction in railway areas outside that State except with the permission of the Central Government.
24. It added a new clause (15) to Article 80, which relates to the extension of the powers and jurisdiction of members of a police force belonging to any State to railway areas outside that State. This amendment provides that no member of a police force belonging to any State shall exercise powers and jurisdiction in railway areas outside that State except with the permission of the Central Government.
25. It added a new clause (16) to Article 80, which relates to the extension of the powers and jurisdiction of members of a police force belonging to any State to railway areas outside that State. This amendment provides that no member of a police force belonging to any State shall exercise powers and jurisdiction in railway areas outside that State except with the permission of the Central Government.
26. It added a new clause (17) to Article 80, which relates to the extension of the powers and jurisdiction of members of a police force belonging to any State to railway areas outside that State. This amendment provides that no member of a police force belonging to any State shall exercise powers and jurisdiction in railway areas outside that State except with the permission of the Central Government.
27. It added a new clause (18) to Article 80, which relates to the extension of the powers and jurisdiction of members