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Trade Receivables - Schedule of Trade Receivables (Detail)
₨ in Millions, $ in Millions
Mar. 31, 2023
INR (₨)
Mar. 31, 2023
USD ($)
Mar. 31, 2022
INR (₨)
Mar. 31, 2021
INR (₨)
Trade and other receivables [abstract]        
Trade receivables ₨ 134,026   ₨ 130,283  
Allowance for lifetime expected credit loss (6,813)   (10,299) ₨ (11,077)
Total 127,213   119,984  
Non-current 863 $ 11 4,765  
Current ₨ 126,350 $ 1,537 ₨ 115,219