I have mentioned my 12th exam qaulifying year wrong can I make it correct in Mht cet application form after submitting it

Yes you will be given an opportunity to change during the correction window is open. So you will be able to change your year when the correction window is open in April. You will be allowed to change only in these fields. Editing in all fields will not be allowed.you can make corrections only in some of the fields. You can make corrections in some areas such as name, date of birth,your  qualifying exam details, your course detail (for which candidate has applied), institution details (in which you wants admission), etc. You must fill the application form carefully as after the correction period you will not be permitted to make further corrections.