The State Bank of India (SBI) has declined to share details regarding its standard operating procedure (SOP) for the sale and redemption of electoral bonds, citing the exemption given under 'commercial confidence'. This refusal was in response to a Right to Information (RTI) request. The guidelines issued to its authorised branches for handling the electoral bonds were sought, but SBI has kept them confidential. Electoral bonds are financial instruments designed to allow donors to anonymously contribute to political parties.