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Segment reporting
 12 Months Ended
Dec. 31, 2022
Segment Reporting [Abstract]  
Segment reporting Segment reporting
The Company manages various types of business process and information technology services in an integrated manner for clients in various industries and geographic locations. The Company's operating segments are significant strategic business units that align its products and services with how it manages its business, approaches key markets and interacts with its clients.
During the second quarter of 2022, the Company renamed its three reportable segments as follows: (1) the Banking, Capital Markets and Insurance segment was renamed the Financial Services segment; (2) the Consumer Goods, Retail, Life Sciences and Healthcare segment was renamed the Consumer and Healthcare segment; and (3) the High Tech, Manufacturing and Services segment was renamed the High Tech and Manufacturing segment.
The Company’s Chief Executive Officer, who has been identified as the Chief Operating Decision Maker ("CODM"), reviews operating segment revenue, which is a GAAP measure, and operating segment adjusted income from operations ("AOI"), which is a non-GAAP measure. The Company does not allocate, and therefore the CODM does not evaluate, stock-based compensation expenses, amortization and impairment of acquired intangible assets, foreign exchange gain/(losses), interest income/(expense), restructuring expenses, acquisition related expenses, any losses or gains from businesses held for sale, including impairment charges, other income/(expense), or income taxes by segment. The Company’s operating assets and liabilities pertain to multiple segments. The Company manages assets and liabilities on a total company basis, not by operating segment, and therefore asset and liability information and capital expenditures by operating segment are not presented to the CODM and are not reviewed by the CODM.
Revenues and adjusted income from operations for each of the Company’s segments for the year ended December 31, 2020 were as follows: 
Net revenues
Data-Tech-AIDigital OperationsTotalAOI
Financial Services389,291 689,903 1,079,194 132,939 
Consumer and Healthcare513,775 750,878 1,264,653 197,197 
High Tech and Manufacturing486,532 902,294 1,388,826 244,166 
Total reportable segment1,389,598 2,343,075 3,732,673 574,302 
Others*(5,627)(17,669)(23,296)14,506 
Total1,383,971 2,325,406 3,709,377 588,808 
Stock-based compensation(74,008)
Amortization and impairment of acquired intangible assets (other than included above)(43,648)
Acquisition-related expenses(2,650)
Foreign exchange gains (losses), net7,482 
Interest income (expense), net(48,960)
Restructuring expenses (refer (a) below and Note 27)(26,547)
Income tax expense(92,201)
Net income308,276 
(a) We do not allocate these charges to individual segments in internal management reports used by the chief operating decision maker. Accordingly, such expenses are included in our segment reporting as “unallocated costs.”
*Revenues, net for “Others” primarily represents the impact of foreign exchange fluctuations, which is not allocated to the Company’s segments for management’s internal reporting purposes. Adjusted income from operations for “Others” primarily represents the impact of over-absorption of overhead, unallocated allowances for credit losses, impairments related to operating ROU assets and property, plant and equipment, and foreign exchange fluctuations, which are not allocated to the Company’s segments for management’s internal reporting purposes.
24. Segment reporting (Continued)
Revenues and adjusted income from operations for each of the Company’s segments for the year ended December 31, 2021 were as follows:

Net revenues
Data-Tech-AIDigital OperationsTotalAOI
Financial Services402,508 614,279 1,016,787 126,972 
Consumer and Healthcare666,800 842,735 1,509,535 250,765 
High Tech and Manufacturing618,378 860,774 1,479,152 272,754 
Total reportable segment1,687,686 2,317,788 4,005,474 650,491 
Others**4,595 12,142 16,737 12,189 
Total1,692,281 2,329,930 4,022,211 662,680 
Stock-based compensation(81,968)
Amortization and impairment of acquired intangible assets (other than included above)(57,641)
Acquisition-related expenses(1,177)
Foreign exchange gains (losses), net12,669 
Interest income (expense), net(51,434)
Income tax expense(113,681)
Net income369,448 
**Revenues, net for “Others” primarily represents the impact of foreign exchange fluctuations, which is not allocated to the Company’s segments for management’s internal reporting purposes. Adjusted income from operations for “Others” primarily represents the impact of over-absorption of overhead, unallocated allowances for credit losses, and foreign exchange fluctuations, which are not allocated to the Company’s segments for management’s internal reporting purposes.
24. Segment reporting (Continued)
Revenues and adjusted income from operations for each of the Company’s segments for the year ended December 31, 2022 were as follows:

Net revenues
Data-Tech-AIDigital OperationsTotalAOI
Financial Services532,901 651,445 1,184,346 157,917 
Consumer and Healthcare741,350 885,126 1,626,476 213,737 
High Tech and Manufacturing716,630 935,678 1,652,308 283,598 
Total reportable segment1,990,881 2,472,249 4,463,130 655,252 
Others***(30,992)(60,966)(91,958)38,125 
Total1,959,889 2,411,283 4,371,172 693,377 
Business held for sale (refer to Note (b) below and Note 8)(11,973)24,842 
Total (excluding business held for sale - refer to Note (b) below and Note 8)4,359,199 718,219 
Stock-based compensation(77,373)
Amortization and impairment of acquired intangible assets (other than included above)(42,566)
Foreign exchange gains (losses), net15,392 
Interest income (expense), net(52,204)
Business held for sale (refer to Note (b) below and Note 8)(24,842)
Impairment charge on assets classified as held for sale (refer to Note (b) below and Note 8)(32,575)
Restructuring expense (refer to Note (c) below and Note 27)(38,815)
Income tax expense(111,832)
Net income353,404 
(b) During the second quarter of 2022, the Company's management approved a plan to divest a business that comprises part of the Company's Consumer and Healthcare segment. The revenues and associated losses, including an impairment charge recorded for the year ended December 31, 2022, attributable to this business have been excluded from the computation of adjusted income from operations margin with effect from April 1, 2022, as management believes that excluding these items provides useful information about the Company's financial performance and underlying business trends.
(c) The Company does not allocate these charges to individual segments in internal management reports used by the CODM. Accordingly, such expenses are included in the Company's segment reporting as “unallocated costs.”
***Revenues, net for “Others” primarily represents the impact of foreign exchange fluctuations, which is not allocated to the Company’s segments for management’s internal reporting purposes. Adjusted income from operations for “Others” primarily represents the impact of over-absorption of overhead, unallocated allowance for credit losses, and foreign exchange fluctuations, which are not allocated to the Company’s segments for management’s internal reporting purposes.
24. Segment reporting (Continued)
Revenues from a single customer in the Company’s High Tech and Manufacturing segment comprised 12.4%, 9.4% and 8.9% of the Company’s consolidated total net revenues in 2020, 2021 and 2022, respectively.
Net revenues from geographic areas based on the location of the Company’s service delivery centers are as follows. A portion of net revenues attributable to India consists of net revenues for services performed by delivery centers in India or at clients’ premises outside of India by business units or personnel normally based in India.
Year ended December 31,
202020212022
India$1,851,347 $2,022,123 $2,282,706 
Asia, other than India461,839 536,595 551,474 
North and Latin America1,007,635 1,011,759 1,065,509 
Europe388,556 451,734 471,483 
Total net revenues$3,709,377 $4,022,211 $4,371,172 
Property, plant and equipment, net by geographic region are as follows:
As of December 31,
20212022
India$142,237 $125,442 
Asia, other than India16,315 14,486 
North and Latin America36,973 26,031 
Europe19,564 14,799 
Total$215,089 $180,758