Employee Benefits - Summary of Actuarial Assumptions (Detail) |
Mar. 31, 2025 |
Mar. 31, 2024 |
---|---|---|
Bottom of Range [Member] | ||
Disclosure Of Defined Benefit Plans [Line Items] | ||
Discount rate (per annum) | 6.40% | 6.90% |
Future salary growth (per annum) | 7.00% | 7.00% |
Withdrawal rate | 6.00% | 5.00% |
Top of Range [Member] | ||
Disclosure Of Defined Benefit Plans [Line Items] | ||
Discount rate (per annum) | 6.50% | 7.00% |
Future salary growth (per annum) | 12.00% | 11.00% |
Withdrawal rate | 25.00% | 25.00% |