v3.26.1
Other non-current financial assets (Details 2) - INR (₨)
₨ in Millions
Mar. 31, 2026
Mar. 31, 2025
Disclosure of Other Non-current Financial Assets [Line Items]    
Bank Deposits ₨ 2,019 ₨ 1,652
Tax litigation purposes [Member]    
Disclosure of Other Non-current Financial Assets [Line Items]    
Bank Deposits 0 0
Security Deposit-Staff Selection Commission [Member]    
Disclosure of Other Non-current Financial Assets [Line Items]    
Bank Deposits 0 0
VBD related transaction (OD against FD) [Member]    
Disclosure of Other Non-current Financial Assets [Line Items]    
Bank Deposits 0 0
Non-fund based limits [Member]    
Disclosure of Other Non-current Financial Assets [Line Items]    
Bank Deposits 101 0
New current account [Member]    
Disclosure of Other Non-current Financial Assets [Line Items]    
Bank Deposits 0 0
New Okhla Industrial Development Authority (NOIDA) for restoration of Industrial Plot [Member]    
Disclosure of Other Non-current Financial Assets [Line Items]    
Bank Deposits 190 206
Towards borrowings, bank guarantees and letter of credit [Member]    
Disclosure of Other Non-current Financial Assets [Line Items]    
Bank Deposits ₨ 1,728 ₨ 1,446