Anyone can able to give CAT exam and get selected in IIM if he follow the eligibility creteria
1.Bachelor’s degree in Engineering/Technology (4 years after 10+2/Post B.Sc./Post Diploma ) or B.E/B.Tech equivalent examinations, of Professional Societies, recognized by MHRD/UPSC/AICTE.
2.Any Qualification recognized by Association of Indian Universities New Delhi, which is equivalent to a Bachelor’s Degree awarded by UGC recognized University/Institutions.
3.Cases not covered above equivalency certificate to be produced from Association of Indian Universities New Delhi.