For good B school Entrance exam is needed..But lots of B school which seats are not filled by any of entrance exam they can admit students Without any exams also..But the records of that B schools are not that much good..If you want to make your career by MBA then entrance exam is needed..If you want just a MBA degree then its all fine to not to give any exam and do MBA in distance education.

no, its not necessary for MBA admission

there are other exams too that u can give for MBA admission in good B-schools.

like,

CAT

SNAP

IIFT