As you want to get the good marks in Karnataka Common Entrance test (KCET) for engineering, I am giving you information about it, check below for the details

Firstly you should have knowledge about the exam pattern of the exam

There will be three papers of
Physics,
Chemistry and
Mathematics

Each paper will carry 60 questions.
All the questions will be Multiple Choice Type.

For each correct answer, one mark will be allocated to the candidates and no negative marking will be done.

Now to get good marks you have to study hard
You have to be disciplined in your preparation.
You can prepare by referring to various books.
You can also join some test series.
Prepare notes to study at the end.
Keep improving your speed.
Improve your weak areas and you will get the good marks.