hello,

you have to score more than the cutoff. Try to improve your performance. solve lots of question numerous times and repeat them again and again until you either  understand it or remember it. in any way you have to increase your performance to qualify in the original exam. this will done if you get your bascis clear and concepts are strong. if you make your concept strong it will be easy to solve easy numericals then after easy you can move to hard.

Hope it helps!