Hi. As you stated that you are a domicile holder of the state of Bihar, you are definitely eligible for state quota for MBBS/ BDS admissions in Bihar. Here is the previous year's cut off for MBBS in Bihar for EWS category
Anugrah Narayan Magadh Medical College and Hospital, Gaya- 578
Darbhanga Medical College, Laheriasarai- 593
Government Medical College, Bettiah- 576
IGIMS, Patna- 605JNMC, Bhagalpur- 585
As you can see, you have a fairly good chance to get into most of the medical colleges in Bihar. You should go for the state counselling and attend all the rounds.
You can check cut off marks of other Medical colleges in Bihar here:
https://medicine.careers360.com/articles/neet-cutoff-bihar
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