v3.26.1
Loans and borrowings (Details 5) - INR (₨)
₨ in Millions
12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Disclosure of reconciliation of liabilities arising from financing activities [line items]    
Opening balance ₨ 46,705 ₨ 20,020
Recognition of lease liabilities during the year 9,709 2,576
Payment of principal portion of lease liabilities (1,263) (1,294)
Borrowings made during the year 119,829 80,646
Borrowings repaid during the year (99,573) (56,156)
Effect of changes in foreign exchange rates 1,934 913
Closing balance 77,341 46,705
Long-term borrowings [member]    
Disclosure of reconciliation of liabilities arising from financing activities [line items]    
Opening balance [1] 8,721 7,297
Recognition of lease liabilities during the year [1] 9,709 2,576
Payment of principal portion of lease liabilities [1] (1,263) (1,294)
Borrowings made during the year [1] 0 0
Borrowings repaid during the year [1] (1) 0
Effect of changes in foreign exchange rates [1] 1,040 142
Closing balance [1] 18,206 8,721
Short-term borrowings [member]    
Disclosure of reconciliation of liabilities arising from financing activities [line items]    
Opening balance 37,984 [2] 12,723
Recognition of lease liabilities during the year 0 [2] 0
Payment of principal portion of lease liabilities 0 [2] 0
Borrowings made during the year 119,829 [2] 80,646
Borrowings repaid during the year (99,572) [2] (56,156)
Effect of changes in foreign exchange rates 894 [2] 771
Closing balance [2] ₨ 59,135 ₨ 37,984
[1] Includes current portion.
[2] Does not include movement in bank overdraft.