"CHENNAI: State Bank of India (SBI), Indiau2019s largest lender, will resume charging customers who donu2019t maintain monthly account average balance (MAB) in their savings bank accounts from April 1. These charges will be based on the difference between the minimum balance required and the shortfall.nnThe minimum monthly balance for savings bank account holders in metropolitan areas is Rs 5,000. Similarly, in urban areas, SBI customers will need to maintain a monthly average balance of Rs 3000. In semi-urban areas, the amount is Rs 2,000, while for rural areas, the monthly average is Rs 1,000.nnFor metropolitan areas, if the shortfall is greater than 75 per cent, the charges would be Rs 100-plus service tax. Similarly, in urban areas, if the shortfall in MAB is less than 50 per cent, then a charge of Rs 40 plus service tax will be levied."