The counseling process of UPES is on the basis of UPES Engineering Aptitude Test that is  UPESEAT result. UPES offers admissions to 80% of the total seats. The university considers Board Merit and JEE Main rank for offering admission to the remaining 20% of the seats. Therefore there is no normailsation.

Rest counseling process and counseling method for UPES can be checked here.

To add on, 

Admissions through Board Merit - Minimum 80% marks in class 10th, 80% marks in class 12th and also have an aggregate of 80% in Physics, Chemistry and Maths (PCM) in class 12th.

Admissions through JEE Main Merit - Minimum 60% marks in class 10th, 60% marks in class 12th and also have an aggregate of 60% in Physics, Chemistry and Maths (PCM) in class 12th with JEE Main Score.

Good Luck.