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Intangible Assets, Net (Parenthetical) (Detail) - 12 months ended Mar. 31, 2024 - HDFC Credila Financial Services Limited [Member]
₨ in Millions, $ in Millions
INR (₨)
USD ($)
Brand [Member]    
Finite And Indefinite Lived Intangible Assets [Line Items]    
Indefinite lived intangible assets written off related to sale of business unit ₨ 8,527.5 $ 102.3
Distribution Service [Member]    
Finite And Indefinite Lived Intangible Assets [Line Items]    
Indefinite lived intangible assets written off related to sale of business unit ₨ 8,972.4 $ 107.6