Bihar Gramin Bank (BGB) is a Regional Rural Bank (RRB) established on 01/05/2025 under the sub-section (1) of section 3 of the RRB Act 1976. The bank was formed by amalgamation of two RRBs of Bihar viz. Dakshin Bihar Gramin Bank (DBGB) & Uttar Bihar Gramin Bank (UBGB) through notification dated 07/04/2025 of Ministry of Finance (MoF), Govt. of India. BGB is sponsored by Punjab National Bank (PNB).