| Cumulative non-convertible compulsorily redeemable preference shares | -- | -- | * | -- |
| PTC Series A1 | -- | -- | * | -- |
| PTC Series A1 | -- | -- | * | -- |
| PTC Series A1 | -- | -- | * | -- |
| PTC Series A2 | -- | -- | * | -- |
| PTC Series A2 | -- | -- | * | -- |
| PTC Series A1 | -- | -- | * | -- |
| PTC Series A2 | -- | -- | * | -- |
| PTC Series A2 | -- | -- | * | -- |
| PTC Series A1 | -- | -- | * | -- |