Ensure you have a proper timetable in place. Clearly, demarcate the concepts that are required to be prepared and budget preparation time accordingly. Stick consistently to the schedule to ensure timely preparation and revision of syllabus.
Clear your doubts on a regular basis to ensure nothing gets prolonged and things happen on time. Otherwise, towards the end of the exam, you would run into a concept that is ambiguous to you and tough to crack.
Prepare notes and flashcards to help you revise your syllabus from time to time. It is important to retain information on which you have prepared on. You would have to be regular with your studying and revision as consistent preparation helps you to do well.
Most of the engineering courses in the UG level have entrance exams testing candidates on the 11th and 12th grade syllabus. It is important to revise these concepts to do well in the exam.
The most important of all, time needs to be managed in preparation effectively to ensure that only things which matter are prepared.
All the best for KEAM!