After the country's largest lender State Bank of India has said its shareholders approved Rs 7,900 crore capital infusion by the government, it feels that the amount allocated may not be adequate for all PSU banks. However, Diwakar Gupta, MD & CFO, SBI told NDTV Profit that it is a promising start because once this amount of feed capital is available, most banks will have some rules for private raising of capital whether through a preferential allotment or through rights or an FPO depending on the requirement.