Nitin Aggarwal, Head – BFSI Research, Institutional Equities at Motilal Oswal Financial Services (MOFSL) remains positive on ICICI Bank, HDFC Bank and SBI, while favouring AU Small Finance Bank among mid-sized lenders and PNB in the PSU space. Aggarwal also sees improving prospects for IDFC First Bank and expects credit costs to remain supportive.