First I would like to congratulate you for scoring so well in the exam. You can easily get a MBBS seat in government medical colleges of Bihar. The college you may get under state quota are,

• Jawaharlal Nehru Medical College, Bhagalpur
• Government Medical College, Bettiah
• Vardhman Institute of Medical Sciences, Pawapuri, Nalanda
• Anugrah Narayan Magadh Medical College, Gaya
• Sri Krishna Medical College, Muzaffarpur

You can yourself check the cutoff of medical colleges of Bihar by going through the below given link.

Https://medicine.careers360.com/articles/neet-cutoff-bihar

You can also predict what colleges you might get with these marks by going through the link of neet College predictor tool given below.

Https://medicine.careers360.com/neet-college-predictor

Hope it helps.

Thank you.