Borrowings (Details 5) - INR (₨) ₨ in Millions |
12 Months Ended | |
|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
|
| Disclosure Of Borrowings [Line Items] | ||
| Borrowings | ₨ 42,506 | ₨ 43,290 |
| Buyers credit facilities [Member] | ||
| Disclosure Of Borrowings [Line Items] | ||
| Borowing notional amount | 500 | |
| Borrowings | ₨ 0 | ₨ 92 |
| Purpose | For capex imports (networking equipment) | |
| Security | Exclusive charge on movable fixed asset funded out of facility. |