Hello Astha, 

UPES is no doubt a renowned college and holds various accreditations and also have a good ranking overall whereas the lower ranked NLUs are government institutes but their ranks are not that good. If we talk about the exposure that a student faces in total duration of course in both segments then obviously UPES is good in that. If you want a tag of NLU with you then must go with them otherwise UPES is a good choice as a college if not middle ranked NLUs.