which istitute is the best for the prepration of entrance exams of BBA, edu mentor or ims?

Astha, although both the institutes are popular but I am personally more inclined towards IMS. For CAT, IMS and TIMES are the first choices for MBA aspirants and majority of students from these institutes crack the CAT. Frankly speaking, I heard a little about edu mentor, anyway, this is not to undermine the potential of the institute. Rest lies on your observations and interactions with alumni and ex-students. The ultimate decision will be your's.