Is it necessary to write CAT exam to pursue MBA in aviation?

CAT is not compulsory to pursue MBA, but yes any other entrance exam is necessary, as per the college and University norms. You can't pursue MBA without giving any entrance exam. So, check where you want to take admission and which exam you have to give.

Hi, Apart from 50% in your graduation, you should have cleared CAT, CMAT or management entrance exams in order to get admission in a reputed b-school for this course. Institutes like UPES, Maples and many other provide such courses. You can go through the eligibility criteria on their official sit

Not only CAT, but you can also write MAT, XAT, ATMA, CMAT or GMAT.