How can i increase my managerial aptitude for preparing MBA entrance exams?

Aptitude is something that cannot be developed over night . You need to first develop interest and then get your basics clear. Then all you need is a lot of practice since practice makes a man perfect. Here are some tips .Check this out - https://edudrona.com/questions/question/how-to-increase-apti

Attending maximum number of mock exams before the original exam will not only improve you aptitude level but surely will help you to improve your accuracy level too. For every MBA exams accuracy is very very important especially for CAT and XAT