AT the time of admission if the respective University considers 10+2 marks as a criteria ( minimum 60%). In 60% include languages or not?

Hello dear, it depends on the university's eligibility criteria. Most of the university looks for overall percentage. Some of them looks for core subject as per subject's need. You should go through the admission criteria of the respective university. All the best. Thank you.

Most of the universities include language marks for grading.

It depends on the university, but the universities which provide admission through your class 12th marks would consider your language marks.

Most of the Universities consider total % of marks.