Non convertible debentures (Rs 753 crore) - IVR BBB-/ Stable Optionally convertible debentures (Rs 863.88 crore) - IVR BBB-/ Stable Long term facilities (Rs 121.12 crore) - IVR BBB-/ Stable Long term / short term facilities (Rs 7313.28 crore) - IVR BBB-/Stable/ VRA3