Hi ,

As you would know there is no specified age limit for this examination.  The qualification is to pass 12th boards with physics , Chemistry  and maths , with 50% aggregate marks. The other criteria depends upon your domicile . Admission to engineering is solely based on your scores in mht cet exam. It doesnt matter if you have already joined a course and is trying again. 

For detailed information do check this link

https://engineering.careers360.com/articles/mht-cet-eligibility-criteria

Hope this was helpful. 

For further queries please approach careers360.