Quarter-end balance sheet considerations led to gilt buying by the banks Prices of government securities even in cash-tight situation went up by 10-12 paise Yield on the ten-year paper closed at 7.6150 per cent as against 7.63 per cent on Thursday Call rates zoomed to six-year high of 20 per cent due to excess demand for rupee liquidity The Reserve Bank of India (RBI) infused liquidity to the tune of RS 32,000 crore into the market