Financial instruments (Details 8) - INR (₨) ₨ in Millions |
12 Months Ended | ||
|---|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
Mar. 31, 2024 |
|
| Financial assets at amortized cost, class [member] | |||
| Financial assets at amortised cost | |||
| Interest income on bank deposits | ₨ 150 | ₨ 346 | ₨ 231 |
| Interest income from other financial assets | 24 | 44 | 30 |
| Impairment loss of trade receivables | (164) | (195) | (265) |
| Financial assets at fair value through profit or loss, category [member] | |||
| Financial assets at fair value through profit or loss | |||
| Net change in fair value of derivative financial instruments gain/(loss) | 9 | 8 | 8 |
| Financial liabilities at amortized cost, class [member] | |||
| Financial liabilities at amortised cost | |||
| Interest expenses on lease obligations | (336) | (299) | (250) |
| Interest expenses on borrowings from banks, others and overdrafts | ₨ (3,386) | ₨ (2,282) | ₨ (1,738) |