MU-OET is a very simple exam.
This exam basically tests your speed and accuracy.
You got to answer 200 questions in 150 minutes!
Score above 140/150 is a decent one and can try for core branches at MIT, manipal.
There are many scholarships as well. So, do check it out in their official website.
If you have thoroughly prepared for the state level entrance exams,then I feel MU OET is a piece of cake.