v3.25.2
Goodwill and Intangible Assets - Additional Information (Detail)
₨ in Millions, $ in Millions
12 Months Ended
Mar. 19, 2024
INR (₨)
Jul. 01, 2023
INR (₨)
Jul. 01, 2023
USD ($)
Mar. 31, 2025
INR (₨)
Mar. 31, 2025
USD ($)
Mar. 31, 2024
INR (₨)
Mar. 31, 2023
INR (₨)
Mar. 31, 2025
USD ($)
Mar. 31, 2024
USD ($)
Jul. 01, 2023
USD ($)
Finite And Indefinite Lived Intangible Assets [Line Items]                    
Finite lived intangible assets amortization       ₨ 25,237.2 $ 295.4 ₨ 21,201.0 ₨ 0.0      
Goodwill written off related to sale of business unit       0.0 $ 0.0 73,576.1        
GoodwillI impairment Loss       0.0            
Goodwill       1,629,510.3   1,629,510.3 ₨ 74,937.9 $ 19,074.2 $ 19,074.2  
Erstwhile Centurion Bank Of Punjab [Member]                    
Finite And Indefinite Lived Intangible Assets [Line Items]                    
Goodwill       74,937.9            
Erstwhile Housing Development Finance Corporation Limited [Member]                    
Finite And Indefinite Lived Intangible Assets [Line Items]                    
Goodwill       1,554,572.4            
eHDFC [Member]                    
Finite And Indefinite Lived Intangible Assets [Line Items]                    
Goodwill   ₨ 1,628,148.5       1,628,148.5       $ 19,058.3
HDFC Credila Financial Services Limited [Member] | eHDFC [Member]                    
Finite And Indefinite Lived Intangible Assets [Line Items]                    
Goodwill written off related to sale of business unit ₨ 73,576.1 ₨ 73,576.1 $ 861.2              
Depreciation And Amortization [Member]                    
Finite And Indefinite Lived Intangible Assets [Line Items]                    
Finite lived intangible assets amortization       ₨ 25,237.2   ₨ 21,201.0