Hello Garvit,
The UPES cut off for computer science is generally around 70 out of 200 which should not be a big deal according to me. But I strongly recommend you to pursue any other branch related to petroleum or chemical field as these are the specialities of UPES!
Hope this finds you well.
Thank you!
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile