it's difficult to determine the single highest mark achieved by a student at Presidency University as specific details may vary depending on the course, year, and grading system used.

If referring to an entrance exam, the highest mark would be the maximum achievable score on that exam. For example, Presidency University uses exams like KCET, UCEED, and others for certain programs. The cutoff ranks for these exams indicate the minimum scores required for admission.

Hope it helps..