MHCET is all about speed along with better Accuracy. There is no any separate book to prepare for MHCET MBA. You can prefer any of the exam material of MBA programmes, it will help you. You can prefer the books for the preparation like Disha Publication, Arun sharma,  Verbal and Non-verbal reasoning by RS Agarwal or you can also prefer the study material of Career Launcher, T.I.M.E.

Good Luck!