There are several colleges which take admission without any exam. However it is stronngly recommended to appear for a national or state or university level entrance exam as it will check your readiness for the course

Hai 

It is always better to go for mba after writing any competitive exam. It tests your aptitude for this course as well. Better to focus on 2019 exams and prepare for it. If you have any queries kindly get back to us.

Thank you and good wishes