BITSAT have easier questions in comparison to JEE Main. 

Questions asked in BITSAT are direct and JEE Main questions requires deep knowledge.

BITSAT is a speed test but for JEE Main you have to maintain a balance between speed and accuracy. 

If you are well prepared for JEE Main you can crack BITSAT easily.

Good Luck!!

Hey,

As it is said - there is no substitute for hard work, so practicing as many questions as possible is the trick.  Yes, BITSAT is considered to be easier than JEE Main (AIEEE).
But in BITSAT - you have to solve 150 questions in 180 minutes 
So, speed with accuracy is what is required in BITSAT, although questions are easier as compared to JEE.

All the Best!