What were the changes brought about by the Constitution (Sixty-sixth Amendment) Act, 1990, s. 2 (w.e.f. 7-6-1990)?
The changes brought about by the Constitution (Sixty-sixth Amendment) Act, 1990, s. 2 (w.e.f. 7-6-1990) were that Entries 203 to 257 were inserted into the Indian Constitution. These entries are related to various aspects of land ownership, tenancy, and agriculture in different states across India, as mentioned in the context provided.