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Trade Receivables - Summary of Allowance for Lifetime Expected Credit Loss (Detail) - INR (₨)
₨ in Millions
12 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Disclosure of financial assets [abstract]    
Balance at the beginning of the year ₨ 6,813 ₨ 10,299
Additions / (write-back), net (Refer to Note 25) 640 (604)
Charged against allowance (1,078) (3,302)
Translation adjustment (59) 420
Balance at the end of the year ₨ 6,316 ₨ 6,813