Hello Deepanshu,

For getting a good score in UPSEE you need to clear your doubts thoroughly and basics very strong because it is only 3 hours exam and you have to answer 150 questions so in that way you have to be very quick and have be strong on you basics the same time.

So, for preparing for UPSEE take all the previous year papers and solve each paper on daily basis. This will help you to have a 3 hours of sitting and will speed up your answering process. 

After solving the exam clear you doubts and study hard.

Hope this will help.