Contingencies (Details) - Electricity Under Physical Power Purchase Agreement [member] ₨ in Millions |
12 Months Ended |
|---|---|
|
Mar. 31, 2026
INR (₨)
| |
| Year 1 [member] | |
| Disclosure of contingencies [Line Items] | |
| Estimated future cash flows from unrecognized contractual commitments | ₨ 1,226 |
| Year 2 - 5 [member] | |
| Disclosure of contingencies [Line Items] | |
| Estimated future cash flows from unrecognized contractual commitments | 4,664 |
| Year 6 - 10 [member] | |
| Disclosure of contingencies [Line Items] | |
| Estimated future cash flows from unrecognized contractual commitments | 5,324 |
| After Year 10 [member] | |
| Disclosure of contingencies [Line Items] | |
| Estimated future cash flows from unrecognized contractual commitments | ₨ 4,812 |