Put your previously gained knowledge to test here! Mock tests or self practice guides, play a crucial role in turning the examination into a simple task and fetching good results. It's said that "shed your sweat in practice rather than shedding the blood in the war." Practicing tests beforehand not only makes you accustomed to the paper pattern but also gives you the pre exam experience at your home. It's better to fail or discover the mistakes in a mock test than in the real exams.
Practice the Questions only after completion of theory and numerical problems of any chapter. then it will be useful to you!