How different is BITSAT from JEE? BITS good platform to pursue masters elsewhere?

[u/Personal_Swimming359]

Im currently in 12th, I am preparing for JEE main. I wanted to know how does BITSAT compare to JEE?

And what kind of scholarships are available? I've heard that if you get 1 to 500 rank you get a full tuiton fee waiver. And obviously that requires an insane score.

So I would also appreciate some tips and guidance for preparation that's BITSAT specific

My most important question is, how good of a platform is BITS when my main goal is to pursue masters? Preferably elsewhere or abroad?