State-run Central Bank of India on Saturday reported a marginal 6 per cent rise in net profit at Rs203 crore in the June quarter on account of reduction in cost of deposits and lower provisioning for bad loans. However, the profitability was dragged down by rise in NPA. “Our cost of deposits has come down by around 20 basis points. We are aware that NPAs are going to happen and the resultant erosion of interest income. So, the best way is to mitigate this by reducing cost and our single largest cost factor is interest outgo and will reduce it by focusing on CASA,” CMD Rajeev Rishi said.