v3.26.1
Expenses by Nature - Schedule of Expense by Nature (Details) - USD ($)
$ in Millions
 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Expenses by nature [abstract]      
Employee benefit costs $ 10,882 $ 10,165 $ 9,981
Depreciation and amortization charges 552 569 565
Travelling costs 237 224 213
Cost of technical sub-contractors 1,740 1,530 1,477
Cost of software packages for own use 321 292 259
Third party items bought for service delivery to clients 1,453 1,589 1,372
Consultancy and professional charges 235 197 210
Communication costs 68 73 81
Repairs and maintenance 200 183 175
Rates and Taxes 35 41 39
Provision for post-sales client support (19) (13) 9
Power and fuel 25 27 24
Commission to non-whole time directors 2 2 2
Branding and marketing expenses 153 144 122
Impairment loss recognized / (reversed) under expected credit loss model 4 6 15
Insurance charges 38 36 25
Contribution towards Corporate Social Responsibility 70 69 64
Others 77 72 95
Total cost of sales, selling and marketing expenses and administrative expenses $ 16,073 $ 15,206 $ 14,728