Placements do not solely depend on which college you study in. Even IITs have some students that do not get placed (some of my friends shared this fate). A college can just facilitate you, not guarantee you. A lot depends on the student, that he has good CGPA, strong knowledge of his subjects.
If a student is not able to clear the cut off criteria a company has asked, then there is no fault of college if the student does not get placed.
UPES is a good institution, and there are many reputed companies that visit the campus regularly year after year. If you work hard and can justify yourself in an interview, there is no doubt in you getting a really good placement. Remember, a college has only 20% contribution in placements, rest is student’s contribution.