What were the changes made to Tamil Nadu by the State Reorganisation Act, 1956, and the Andhra Pradesh and Madras (Alteration of Boundaries) Act, 1959?
The changes made to Tamil Nadu by the State Reorganisation Act, 1956, and the Andhra Pradesh and Madras (Alteration of Boundaries) Act, 1959, are as follows:

1. Territories which were either comprised in the Province of Madras or were being administered as if they formed part of that Province before the commencement of this Constitution were included in Tamil Nadu.
2. The territories specified in section 4 of the States Reorganisation Act, 1956, and the Second Schedule to the Andhra Pradesh and Madras (Alteration of Boundaries) Act, 1959, were added to Tamil Nadu's territory.
3. Territories specified in sub-section (1) of section 3 and sub-section (1) of section 4 of the Andhra State Act, 1953, and clause (b) of sub-section (1) of section 5, section 6 and clause (d) of sub-section (1) of section 7 of the States Reorganisation Act, 1956 were excluded from Tamil Nadu's territory.
4. The territories specified in the First Schedule to the Andhra Pradesh and Madras (Alteration of Boundaries) Act, 1959, were also excluded from Tamil Nadu's territory.