AU Small Finance Bank, India's largest small finance bank, has been assigned a rating of CARE AA/Stable for its long-term debt instruments (Tier-II Bonds) by CARE Ratings, a reputed rating agency registered under the Securities and Exchange Board of India (SEBI). This is an upgrade from the Bank's earlier rating, which was CARE AA-/Stable. In addition, the agency has also reaffirmed the rating of the bank's short-term instruments (Certificate of Deposits) at A1+. The upgrade of ratings by CARE is a strong endorsement for the bank's growing banking franchise.