| PTC Series A1 | -- | -- | [ICRA]AA-(SO) | -- |
| PTC Series A1 | -- | -- | [ICRA]AA-(SO) | -- |
| PTC Series A1 | -- | -- | [ICRA]AA-(SO) | -- |
| PTC Series A1 | -- | -- | [ICRA]AA-(SO) | -- |
| PTC Series A1 | -- | -- | [ICRA]AA-(SO) | -- |
| PTC Series A2 | -- | -- | [ICRA]A+(SO) | -- |
| Non-Convertible Debenture | -- | -- | Withdrawn | -- |
| Commercial Paper | Withdrawn | -- | -- | -- |
| bank facilities | -- | -- | * | -- |