What changes were made in "Subs. by s. 3, ibid, for "States specified in Part C of First Schedule" (w.e.f. 1-11-1956)"?
The changes made in "Subs. by s. 3, ibid, for "States specified in Part C of First Schedule" (w.e.f. 1-11-1956)" are as follows:

1. This change was made through the Constitution (Seventeenth Amendment) Act, 1964 which came into effect on 1st November 1956.
2. The phrase "States specified in Part C of First Schedule" has been replaced with a new clause or section (ibid).
3. This change is related to the readjustment and reallocation of seats in the House of the People after each census, as determined by an authority designated by the Parliament through a law they pass.
4. The changes made do not affect representation in the House of the People until the dissolution of the existing House at the time of the readjustment.