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Employee Benefits - Summary of Employee Costs (Detail) - INR (₨)
₨ in Millions
12 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Mar. 31, 2023
Disclosure of defined benefit plans [abstract]      
Salaries and bonus ₨ 507,629 ₨ 524,484 ₨ 516,063
Contribution to provident and other funds 20,306 19,227 17,623
Share based compensation [1] 5,542 5,590 3,958
Total employee cost ₨ 533,477 ₨ 549,301 ₨ 537,644
[1] Includes ₹ (11), ₹ 6 and ₹ (9) for the years ended March 31, 2023, 2024 and 2025, respectively, towards cash settled ADS RSUs.