Dear aspirant hope you are doing well..

yes you can change your date of birth if it filled wrong By mistake  . When correction window will open you can change the necessary things  . But correction window dates are not announced at yet. It will release soon. Keep checking the official site or  you may update your self on the career 360 site  link is given below.

https://engineering.careers360.com/articles/mht-cet-exam-dates

MHT CET 2022 important Dates

• Commencement of MHT CET 2022 registration : February 10, 2022
• MHT CET application form 2022 last date : March 31, 2022
• Online registration and confirmation of application form with a late fee of Rs. 500 :April 1 to 7, 2022
• MHT CET correction 2022 dates :To be notified
• MHTT CET admit card release date To be notified
• MHT CET exam date 2022 :To be notified

Hope it's helpful

Thank you