How do the changes made by the Goa, Daman and Diu Reorganisation Act, 1987 affect the constitution?
The Goa, Daman and Diu Reorganisation Act, 1987 made several changes to the Indian constitution. These changes include:

1. Insertion of a new state in India named "Goa", which was formed by reorganizing the territories specified in section 3 of the Goa, Daman and Diu Reorganisation Act, 1987.
2. The act led to the creation of a new union territory named "Daman and Diu" by separating it from the newly created state of Goa.
3. The act also made changes to the numbering of entries in the constitution. Entries 16 to 29 were renumbered as entries 15 to 28, as per the Jammu and Kashmir Reorganisation Act, 2019 (34 of 2019), s. 6 (w.e.f. 31-10-2019).

These changes were made to restructure the administrative and political boundaries in India, creating new states and union territories to better serve the needs of their citizens.