Shares of private sector banks were under pressure with AU Small Finance Bank (SFB), RBL Bank and Bandhan Bank sliding up to 9 per cent on profitability concerns. As of 10:09 am, the S&P BSE Private Bank and Nifty Private Bank index were down 1 per cent each, when compared with a 0.6 per cent decline on the benchmarks, S&P BSE Sensex and Nifty50 index.