It has been observed that most of the students loose 15-20% of their marks not because they do not know the subject but because they fail to apply the basic concepts correctly. This is basically due to examination fear & pressure. These marks that a student looses because of silly mistakes (calculation errors, confusion, fail to apply the right concepts, solving the problem by long method) can be reduced if a student regularly participates in test series based on the pattern & level of CAT exams.