Hello aspirant,

It's quite difficult to predict that whether you will get  seat or not as  cut off marks/rank for medical colleges keeps changing every year  depending upon various factors. As you mention with 420-428 marks in neet and you are OBC category it is very difficult to get seat in government MBBS. You can try in private MBBS college.

For more information you can visit  NEET Rank Predictor

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

For more information you can visit  NEET College Predictor

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

I hope this information helps you.

Good Luck!!