| PTC Series A1 | -- | -- | [ICRA]AA(SO) | -- |
| PTC Series A1 | -- | -- | [ICRA]AA+(SO) | -- |
| PTC Series A1(a) | -- | -- | Withdrawn | -- |
| PTC Series A1 | -- | -- | Withdrawn | -- |
| PTC Series A1 | -- | -- | Withdrawn | -- |
| PTC Series A1 | -- | -- | Withdrawn | -- |
| Market Linked Debentures | -- | -- | Withdrawn | -- |
| Non-convertible debenture programme – Market linked debenture | -- | -- | Withdrawn | -- |
| PTC Series A1(d) | -- | -- | Withdrawn | -- |
| PTC Series A1 | -- | -- | * | -- |