There are total 43 Branches of Oriental Bank of Commerce located in Bihar State. I am giving IFSC Code of all branches here:

IFSC Code of Branches of Oriental Bank of Commerce located in Bihar

Patna ORBC0100231
Kisanganj ORBC0100696
Muzaffarpur ORBC0100856
Patna Boring Road ORBC0100934
Arrah ORBC0101216
Painal ORBC0101217
Purnea ORBC0101218
Darbhanga ORBC0101220
Bihar Sarif ORBC0101221
BHAGALPUR ORBC0101262
Samastipur ORBC0101263
Gaya ORBC0101264
HAJIPUR ORBC0101274
CHAPRA ORBC0101322
KATIHAR ORBC0101433
Sarfuddinpur ORBC0101443
Mohania ORBC0101446
Nawada ORBC0101451
Behea ORBC0101511
Banka ORBC0101512
Jainagar ORBC0101515
Dumraon ORBC0101514
Jandaha ORBC0101515
Warsliganj ORBC0101523
Kankarbagh ORBC0101544
Dalsinghsarai ORBC0101626
Murar ORBC0101635
Begusarai ORBC0101639
Madhubani ORBC0101641
Patna City ORBC0101644
Shahdullapur Satan ORBC0101718
Gopalganj ORBC0101791
Phuwari Sharif ORBC0101824
Chaksalem ORBC0101834
Siwan ORBC0101845
Lakhisarai ORBC0101856
Jehanabad ORBC0101939
Colgong ORBC0101951
Motihari ORBC0101962
Bodh Gaya ORBC0101965
Bihita ORBC0102001
RAJPUR DISTT PATNA ORBC0102130
SIKANDARPUR DISTT PATNA ORBC0102131