Dear aspirant

At the examination centre,they will cross check your data in admit card and the I'd proof you are carrying into examination hall. So if your data doesn't match on both then they can stop you from attempting the exam.

You can correct your dob on addhar card by providing your 10th admit card/result as proof in nearest addhar centre.  So it's better that you correct your dob and make it same in every documents as per as your 10th class certificate.  It will be helpful for you in future also.

You can use NEET UG college predictor tool for knowing chances of getting MBBS BDS ayush colleges at your expected marks.

https://medicine.careers360.com/neet-college-predictor?utm_source=qna&utm_medium=neet_cp

Hope this information helps you

All the best