The Central Bureau of Investigation (CBI) has initiated a detailed probe into alleged financial irregularities involving Rs. 1,621 crore linked to Punjab & Sind Bank, intensifying scrutiny over governance and risk controls in the public sector banking system. The investigation focuses on suspected diversion of funds, procedural lapses, and possible collusion between bank officials and external entities. The case has raised fresh concerns about credit appraisal standards and post-sanction monitoring within state-owned lenders.