Basel III Tier I Bonds (Rs 10,000 crore) - ICRA AA+; Stable (assigned) Infrastructure Bonds (Rs 20,000 crore) - ICRA AAA; Stable (reaffirmed) Basel III Tier II Bonds (Rs 20,743 crore) - ICRA AAA; Stable (reaffirmed) Basel III Tier I Bonds (Rs 27,735.70 crore) - ICRA AA+ ; Stable (reaffirmed)