v3.26.1
Borrowings (Details 7) - Supplier Finance arrangements [Member] - INR (₨)
₨ in Millions
12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Payable to MSME-TReDS [Member]      
Disclosure Of Borrowings [Line Items]      
Financial Liabilities ₨ 1,566 ₨ 832 ₨ 385
Security Unsecured    
Payable to MSME-TReDS [Member] | Bottom of range [member]      
Disclosure Of Borrowings [Line Items]      
Borrowings, interest rate 6.08%    
Tenure of average repayment 170 days    
Payable to MSME-TReDS [Member] | Top of range [member]      
Disclosure Of Borrowings [Line Items]      
Borrowings, interest rate 6.99%    
Tenure of average repayment 179 days    
Vendor bill discounting [Member]      
Disclosure Of Borrowings [Line Items]      
Financial Liabilities ₨ 2,445 ₨ 3,274 ₨ 2,134
Security Unsecured    
Vendor bill discounting [Member] | Bottom of range [member]      
Disclosure Of Borrowings [Line Items]      
Borrowings, interest rate 6.30%    
Tenure of average repayment 10 days    
Vendor bill discounting [Member] | Top of range [member]      
Disclosure Of Borrowings [Line Items]      
Borrowings, interest rate 8.90%    
Tenure of average repayment 133 days