Conversation so far:
What languages are/were spoken by the Indigenous people of mexico?
62 indigenous languages as "national languages" which have the same validity as Spanish in all territories where they are spoken.

Question: What is the most popular (or a few of the most spoken) language(s) from these 62 ?
Self-contained rewrite: What is the most popular (or a few of the most spoken) of the 62 Indigenous peoples of Mexico's "natural languages?"