Segment reporting (Details 2) - INR (₨) ₨ in Millions |
Mar. 31, 2026 |
Mar. 31, 2025 |
Mar. 31, 2024 |
|---|---|---|---|
| Disclosure of operating segments [line items] | |||
| Capital expenditure | ₨ 13,289 | ₨ 18,176 | ₨ 9,220 |
| Network centric services | |||
| Disclosure of operating segments [line items] | |||
| Capital expenditure | 2,449 | 4,197 | 2,990 |
| Data center services | |||
| Disclosure of operating segments [line items] | |||
| Capital expenditure | 10,366 | 13,483 | 5,990 |
| Digital services | |||
| Disclosure of operating segments [line items] | |||
| Capital expenditure | ₨ 474 | ₨ 496 | ₨ 240 |