No.
I am assuming you are asking about the UPES engineering entrance test. The UPES-EAT conducted for B.Tech admissions is not very tough. It is rather easy compared to your JEE and BITSAT etc. If you are well prepared for those entrance exams then you are already well prepared for the UPES entrance exam. The only thing extra you need to work upon is general knowledge/current affairs. A few questions are surely added from this topic. If you prepare yourself well, you can easily achieve a top 500 to 1000 Rank so you have a choice to get the top branches in UPES.