Which food items were considered luxuries in the Sangam Age?

Read the following excerpt and answer the question that follows:

"The Sangam texts mention prominently only the ports of Musiri, Puhar (Kaveripattinam) and Korkai, the three great ports of the three great rulers of the timess."

(Source: https://www.du.ac.in/up/oads/new-web/04012023_Appendix-108.pdf)

Who founded Kaveripattinam, and why was it significant?

What titles did the Chera kings hold?

What were the names of the day and evening markets in port towns?