v3.26.1
Stock - Additional Information (Detail)
₨ / shares in Units, ₨ in Millions, $ in Millions
1 Months Ended 12 Months Ended 48 Months Ended
Jul. 19, 2025
INR (₨)
₨ / shares
Jul. 19, 2025
USD ($)
Aug. 31, 2024
INR (₨)
shares
Jul. 31, 2016
INR (₨)
shares
Jun. 30, 2013
INR (₨)
shares
Jun. 30, 2010
INR (₨)
shares
Jun. 30, 2007
INR (₨)
shares
Jun. 30, 2005
INR (₨)
shares
Jun. 30, 2003
INR (₨)
shares
Jan. 31, 2000
INR (₨)
shares
Mar. 31, 2026
INR (₨)
₨ / shares
shares
Mar. 31, 2025
INR (₨)
₨ / shares
shares
Mar. 31, 2024
INR (₨)
₨ / shares
shares
May 13, 2026
Jul. 01, 2023
₨ / shares
Mar. 31, 2023
shares
May 14, 2022
INR (₨)
₨ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                  
Stock-based compensation, intrinsic value of options exercised at grant date | ₨                     ₨ 5,687.6 ₨ 7,049.2 ₨ 5,249.6        
Stock-based compensation, aggregate intrinsic value of options exercised at exercise date | ₨                     8,039.0 33,349.8 14,548.0        
Stock-based compensation, aggregate intrinsic value of options outstanding at grant date | ₨                     10,591.6 16,009.7          
Stock-based compensation, aggregate intrinsic value of options outstanding | ₨                     8,420.1 58,662.2          
Stock-based compensation, aggregate intrinsic value of options exercisable at grant date | ₨                     9,828.2 15,158.2          
Stock-based compensation, aggregate intrinsic value of options exercisable | ₨                     ₨ 8,164.9 ₨ 44,594.6          
Stock-based compensation, unvested options, outstanding                     105,189,900 120,077,946          
Stock-based compensation, unvested options, weighted average exercise price | ₨ / shares                     ₨ 871.8 ₨ 797          
Stock-based compensation, unvested options, aggregate intrinsic value at grant date | ₨                     ₨ 763.3 ₨ 851.5          
Stock-based compensation, unvested options, aggregate intrinsic value as at end of period | ₨                     ₨ 255.2 ₨ 14,067.6          
Equity shares, par value | ₨ / shares                     ₨ 1 ₨ 1          
Share-based payment arrangement, exercise of option, tax benefit | ₨                     ₨ 8,820.2 ₨ 7,041.2 5,561.5        
Effective Income Tax Rate Reconciliation, Tax Expense (Benefit), Share-Based Payment Arrangement, Amount | ₨                     (1,184.8) (1,157.2) ₨ 20,166.2        
Per Share Value of Bonus Equity Share | ₨ / shares ₨ 1                                
Stock Issued During Period, Value, Stock Dividend ₨ 7,677,039,761.0 $ 7,677,039,761                              
eHDFC [Member] | Background and Details of the Business Combination [Member]                                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                  
Equity shares, par value | ₨ / shares                             ₨ 1    
Share based compensation by share based award options granted during the period                         48,559,681        
Employee Stock Option                                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                  
Stock-based compensation, total estimated compensation cost to be recognized in future periods | ₨                     ₨ 16,291.1            
Stock-based compensation, weighted average period of recognition of total compensation cost not yet recognized (in years)                     2 years 1 month 6 days            
Share-based payment arrangement, expense | ₨                     ₨ 12,636.4 ₨ 13,878.7 ₨ 17,379.5        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number                     233,964,038 282,749,020 351,318,848     303,364,922  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period                     80,542,270 105,910,094 92,609,932        
Share based compensation by share based award options granted during the period                     39,333,316 46,293,320 48,769,380        
Employee Stock Option | Plan ''A''                                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                  
Employees' Stock Option Scheme, equity shares reserved for issuance                   200,000,000              
Employees' Stock Option Scheme, aggregate nominal value of equity shares reserved | ₨                   ₨ 200.0              
Employee Stock Option | Plan ''B''                                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                  
Employees' Stock Option Scheme, equity shares reserved for issuance                 200,000,000                
Employees' Stock Option Scheme, aggregate nominal value of equity shares reserved | ₨                 ₨ 200.0                
Employee Stock Option | Plan ''C''                                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                  
Employees' Stock Option Scheme, equity shares reserved for issuance               200,000,000                  
Employees' Stock Option Scheme, aggregate nominal value of equity shares reserved | ₨               ₨ 200.0                  
Employee Stock Option | Plan ''D''                                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                  
Employees' Stock Option Scheme, equity shares reserved for issuance             300,000,000                    
Employees' Stock Option Scheme, aggregate nominal value of equity shares reserved | ₨             ₨ 300.0                    
Employee Stock Option | Plan "E"                                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                  
Employees' Stock Option Scheme, equity shares reserved for issuance           400,000,000                      
Employees' Stock Option Scheme, aggregate nominal value of equity shares reserved | ₨           ₨ 400.0                      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number                     8,961,100            
Employee Stock Option | Plan "F"                                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                  
Employees' Stock Option Scheme, equity shares reserved for issuance         400,000,000                        
Employees' Stock Option Scheme, aggregate nominal value of equity shares reserved | ₨         ₨ 400.0                        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number                     21,432,440            
Employee Stock Option | Plan "G"                                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                  
Employees' Stock Option Scheme, equity shares reserved for issuance       400,000,000                          
Employees' Stock Option Scheme, aggregate nominal value of equity shares reserved | ₨       ₨ 400.0                          
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number                     87,535,624            
Employee Stock Option | Plan "H"                                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                  
Employees' Stock Option Scheme, equity shares reserved for issuance     190,000,000                            
Employees' Stock Option Scheme, aggregate nominal value of equity shares reserved | ₨     ₨ 190.0                            
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number                     81,471,576            
Employee Stock Option | Maximum                                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                  
Employees' Stock Option Scheme, expiration                     5 years            
Restricted Stock Units (RSUs) [Member]                                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                  
Stock-based compensation, intrinsic value of options exercised at grant date | ₨                     ₨ 6,667.2 ₨ 3,586.4          
Stock-based compensation, aggregate intrinsic value of options outstanding at grant date | ₨                     28,034.9 24,360.4          
Stock-based compensation, aggregate intrinsic value of options outstanding | ₨                     23,172.8 27,198.7          
Stock-based compensation, total estimated compensation cost to be recognized in future periods | ₨                     ₨ 12,231.2            
Stock-based compensation, weighted average period of recognition of total compensation cost not yet recognized (in years)                     2 years            
Stock-based compensation, aggregate intrinsic value of RSUs exercised at exercise date | ₨                     ₨ 4,304.8 6,124.0          
Stock-based compensation, aggregate intrinsic value of RSUs exercisable at grant date | ₨                     2,330.9 1,854.3          
Stock-based compensation, aggregate intrinsic value of RSUs exercisable | ₨                     2,108.5 2,205.8          
Stock-based compensation, aggregate intrinsic value of RSUs non-vested at grant date | ₨                     28,833,532.0 27,356,460.0          
Stock-based compensation, aggregate intrinsic value of RSUs non-vested | ₨                     25,704.0 22,506.2          
Stock based compensation, aggregate intrinsic value of RSUs future period | ₨                     ₨ 21,064.3 ₨ 24,992.9          
Weighted average fair value of RSUs granted during the year | ₨ / shares                     ₨ 1 ₨ 1          
Share-based payment arrangement, expense | ₨                     ₨ 9,532.3 ₨ 10,755.2          
Restricted Stock Units (RSUs) [Member] | Employee Stock Incentive Master Scheme Two Thousand And Twenty Two [Member]                                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                  
Employees' Stock Option Scheme, equity shares reserved for issuance                                 200,000,000
Equity shares, par value | ₨ / shares                                 ₨ 1
Common stock shares reserved for future issuance aggregate par value | ₨                                 ₨ 200.0
Share based compensation by share based award vesting period one                           4 years      
Share based compensation by share based award number of shares authorized for grant                     12,103,168 12,509,150 18,708,448        
Weighted average fair value of RSUs granted during the year | ₨ / shares                     ₨ 952.26 ₨ 862.34 ₨ 782.72        
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Outstanding, Number                     31,719,700 29,770,856 23,443,608     5,782,000  
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Exercised                     8,382,710 4,711,930 633,240        
Schemes 45 to 55 | Plan "E"                                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                  
Stock-based compensation, options granted                         10,150,720        
Schemes 45 to 55 | Plan "F"                                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                  
Stock-based compensation, options granted                         25,067,180        
Schemes 45 to 55 | Plan "G"                                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                  
Stock-based compensation, options granted                         13,551,480        
Schemes 56 to 59 | Plan "G"                                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                  
Stock-based compensation, options granted                       1,147,600          
Schemes 56 to 59 | Plan "H"                                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                  
Stock-based compensation, options granted                       45,145,720          
Schemes 60 to 62 | Plan "H"                                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                  
Stock-based compensation, options granted                     39,333,316            
HDFC Life [Member]                                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number                     11,027,288            
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period                     7,143,862            
HDFC Life [Member] | Restricted Stock Units (RSUs) [Member]                                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                  
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Outstanding, Number                     702,152            
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Exercised                     0            
HDFC AMC [Member]                                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number                     5,378,785            
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period                     2,479,033            
HDFC AMC [Member] | Restricted Stock Units (RSUs) [Member]                                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                  
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Outstanding, Number                     499,090            
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Exercised                     0            
HDFC Capital Advisors [Member]                                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number                     131,283            
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period                     0            
HDFC Securities [Member]                                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number                     602,704            
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period                     277,268            
HDB Financial Services [Member]                                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number                     10,526,098            
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period                     4,387,891