Hello Krishna! 

The exam date of jee main is from 6-12 april. It will be conducted in two shifts through online mode. Whereas the exam date of MHT-CET is from2-13 may. 

Now,look at these points for preparation 

Firstly, focus on basic concepts and formula of physics. Ncert chemistry Is just like a bible, learnt them. Solve more sample paper and previous year question papers. Take timed test series. Solve at least thirty question of mathematics in given time. If you are preparing for jee then don't worry about mht cet because mhtcet is easy as compared to jee. 

I hope you get it.