No need to worry. After a few months, when you will start studying at UPES, you will contemplate the campus hostel and you will be thankful to God that it was filled.
There are around 20–30 hostels near UPES. You will get a better ambiance and more independence. Moreover, you will get much more freedom in those hostels in comparison to Campus hostel.
I would say that a PG would be a much better choice. 100’s of PGs are there at Bidholi.
So, don’t worry about the college campus hostel.