The capital structure of the banks will have to be revamped to afford phase-wise implementation of the Basel II capital accord.
According to treasury heads of public sector banks, the capital adequacy of even sound public sector banks will come down by 1-2 per cent due to the migration to Basel II.
Capital will be hit mostly on account of operational risk, which is yet to be quantified in terms of risk weightage. Under the proposed norms, banks will have classify risk into three categories -- credit risk, market risk and operations risk.
Credit risk requires the banks to rate their credit portfolio either through an external rating methodology or an internal rating system. This is likely to ease the pressure on capital provisioning. Credit risk is risk arising from defaults.
The capital charge on operational risk and market risk is likely to substantially alter the capital equation.
Some banks have already started rating their credit portfolio and pegging a capital charge on it. This has helped, they said, as under the previous norm, banks had to levy uniform risk weightage to their entire portfolio irrespective of credit worthiness.
At present, the risk weightage varies in proportion to the quality of the assets.
Therefore, capital charge has come down on good assets. Bankers said things are not clear about operational risk, which is poised to impact banks' capital structure significantly.
This is because, under the norm, banks have to account for all risks that could affect their operations, including strikes, theft, robbery, information technology etc.
The provisioning norms for operational risk is most stringent as it has been specified that 15