Jana Small Finance Bank's IPO will open for subscription on Feb 7, aiming to raise Rs 570cr through a mix of fresh shares and offer-for-sale by existing shareholders. Key details include: dates (Feb 7-9), price band (Rs 399-414/share), lot size (36 shares), company profile (NBFC offering MSME & other loans), financials (total revenue of Rs 5,856cr in FY23).