WNS WNS Holdings Limited

Exhibit 99.1

WNS Announces Fiscal 2025 First Quarter Earnings,

Revises Full Year Guidance

NEW YORK, LONDON, MUMBAI; July 18, 2024 — WNS (Holdings) Limited (WNS) (NYSE: WNS), a leading provider of global digital-led Business Process Management (BPM) solutions, today announced results for the fiscal 2025 first quarter ended June 30, 2024.

As announced previously, beginning this quarter WNS transitioned from reporting to the SEC on the forms available to foreign private issuers and preparing its financial statements in accordance with IFRS to voluntarily reporting on US domestic issuer forms and preparing its financial statements in accordance with US GAAP. On July 9, 2024, WNS furnished a report on Form 8-K with the SEC containing a supplementary financial information package comprising its unaudited quarterly financial results for each of the quarters in fiscal 2024 and for full year fiscal 2024 and 2023 prepared in accordance with US GAAP. The supplementary financial information package sets forth the key impact on our quarterly financial statements for each of the quarters in fiscal 2024 and for full year fiscal 2024 and 2023 as a result of our transition to US GAAP. The comparative financial information in this release for the previous fiscal periods are also under US GAAP.

Reconciliations of the non-GAAP financial measures discussed below to our GAAP operating results are included at the end of this release. See also “About Non-GAAP Financial Measures.”

Revenue in the first quarter was $323.1 million, representing a 1.0% decrease versus Q1 of last year and a decrease of 4.1% from the previous quarter. Revenue less repair payments* in the first quarter was $312.4 million, decreasing 1.6% year-over-year and 4.1% sequentially. Excluding exchange rate impacts, constant currency revenue less repair payments* in the fiscal first quarter was down 1.8% versus Q1 of last year and 3.9% sequentially. Year-over-year, Q1 revenue declined as a result of the offshore delivery transition of a large internet client, volume reductions with certain clients, particularly in our travel vertical, and reductions in discretionary project work. These headwinds were partially offset by new client additions, the expansion of existing relationships, and favorable currency movements. Sequentially, volume reductions with certain clients, ongoing project weakness, and unfavorable currency movements more than offset solid demand for business transformation and cost-reduction-focused initiatives.

Page 1 of 9

Profit in the fiscal first quarter was $28.9 million, as compared to $32.0 million in Q1 of last year and $14.5 million in the previous quarter. Year-over-year, profit decreased as a result of lower revenue, higher SG&A expenses, an increase in net interest expense, and a higher effective tax rate. These headwinds were partially offset by reductions in share-based compensation expense, amortization of intangibles, and favorable currency movements. Sequentially, Q1 profit increased as a result of a $30.9 million intangible asset impairment recorded in Q4 of last year, and a reduction in expenses associated with our ADS program termination and transition to voluntarily reporting on US domestic issuer forms. These benefits were partially offset by lower revenue, higher share-based compensation expense, higher SG&A expenses, an increase in net interest expense, a higher effective tax rate, and unfavorable currency movements.

Adjusted net income (ANI)* in Q1 was $44.0 million, as compared to $51.1 million in Q1 of last year and $53.9 million in the previous quarter. Explanations for the ANI* movements on a year-over-year and sequential basis are the same as described for GAAP profit above with the exception of amortization of intangible expenses, share-based compensation expense, impairment of intangible assets, costs associated with ADS program termination and transition to voluntarily reporting on US domestic issuer forms, acquisition-related items, and associated tax impacts which are excluded from ANI*.

From a balance sheet perspective, WNS ended Q1 with $301.5 million in cash and investments and $301.5 million in debt. In the quarter, the company generated $21.4 million in cash from operations, incurred $10.7 million in capital expenditures, and repaid $10.5 million in debt. WNS also repurchased 1,643,731 ordinary shares at an average price of $51.24, impacting Q1 cash by $78.0 million. First quarter days sales outstanding were 36 days, as compared to 34 days reported in Q1 of last year and 33 days in the previous quarter.

“Our first quarter results were largely in line with company expectations and highlight some of the opportunities and challenges in our business today. Demand for digitally-led business transformation and cost reduction continues to be robust, including larger deals and a strengthening pipeline. At the same time, we continue to see headwinds from declining client volumes, particularly in the travel vertical, and reduced demand for project-based work,” said Keshav Murugesh, WNS’ Chief Executive Officer. “WNS is confident that our strategic growth initiatives are well underway, and that successful execution through the remainder of this year will position the company well entering fiscal 2026. In addition, we remain committed to investing ahead of the curve in technology-enabled offerings leveraging AI and GenAI, improving our access to capital, and opportunistically repurchasing stock.”

Fiscal 2025 Guidance

WNS is updating guidance for the fiscal year ending March 31, 2025, as follows:

“The company has updated our forecast for fiscal 2025 based on current visibility levels and exchange rates,” said Sanjay Puria, WNS’ Chief Financial Officer. “Our guidance for the full year reflects growth in revenue less repair payments* of 0% to 5% on both a reported* and constant currency* basis. For the year, we continue to expect capital expenditures of up to $65 million.”

Conference Call

WNS will host a conference call on July 18, 2024, at 8:00 am (Eastern) to discuss the company’s quarterly results. To access the call in “listen-only” mode, please join live via the company’s investor relations website at ir.wns.com. For call participants, please register using this online form to receive your dial-in number and unique PIN/passcode which can be used to access the call. A replay of the webcast will be archived on the company website at ir.wns.com.

About WNS

WNS (Holdings) Limited (NYSE: WNS) is a leading Business Process Management (BPM) company. WNS combines deep industry knowledge with technology, analytics, and process expertise to co-create innovative, digitally led transformational solutions with over 600 clients across various industries. WNS delivers an entire spectrum of BPM solutions including industry-specific offerings, customer experience services, finance and accounting, human resources, procurement, and research and analytics to re-imagine the digital future of businesses. As of June 30, 2024, WNS had 60,513 professionals across 64 delivery centers worldwide including facilities in Canada, China, Costa Rica, India, Malaysia, the Philippines, Poland, Romania, South Africa, Sri Lanka, Turkey, the United Kingdom, and the United States. For more information, visit www.wns.com.

Page 2 of 9

Safe Harbor Statement

This release contains forward-looking statements, as defined in the safe harbor provisions of the US Private Securities Litigation Reform Act of 1995. These forward-looking statements are based on our current expectations and assumptions about our Company and our industry. Generally, these forward-looking statements may be identified by the use of terminology such as “anticipate,” “believe,” “estimate,” “expect,” “intend,” “will,” “seek,” “should” and similar expressions. These statements include, among other things, expressed or implied forward-looking statements relating to discussions of our strategic initiatives and the expected resulting benefits, our growth opportunities, industry environment, our expectations concerning our future financial performance and growth potential, including our fiscal 2025 guidance, estimated capital expenditures, and expected foreign currency exchange rates. Forward-looking statements inherently involve risks and uncertainties that could cause actual results to differ materially from those expressed or implied by such statements. Such risks and uncertainties include but are not limited to worldwide economic and business conditions, our dependence on a limited number of clients in a limited number of industries; currency fluctuations; political or economic instability in the jurisdictions where we have operations; regulatory, legislative and judicial developments; increasing competition in the BPM industry; technological innovation; our liability arising from fraud or unauthorized disclosure of sensitive or confidential client and customer data; telecommunications or technology disruptions; our ability to attract and retain clients; negative public reaction in the US or the UK to offshore outsourcing; our ability to collect our receivables from, or bill our unbilled services to our clients; our ability to expand our business or effectively manage growth; our ability to hire and retain enough sufficiently trained employees to support our operations; the effects of our different pricing strategies or those of our competitors; our ability to successfully consummate, integrate and achieve accretive benefits from our strategic acquisitions, and to successfully grow our revenue and expand our service offerings and market share; future regulatory actions and conditions in our operating areas; our ability to manage the impact of climate change on our business; volatility of our share price; the possibility of a resurgence of coronavirus disease 2019 pandemic and related impact on our and our clients’ business, financial condition, results of operations and cash flows; and our ability to transition to reporting on US domestic issuer forms. These and other factors are more fully discussed in our most recent annual report on Form 20-F and subsequent reports on Form 6-K and Form 8-K filed with or furnished to the US Securities and Exchange Commission (SEC) which are available at www.sec.gov. We caution you not to place undue reliance on any forward-looking statements. Except as required by law, we do not undertake to update any forward-looking statements to reflect future events or circumstances.

References to “$” and “USD” refer to the United States dollars, the legal currency of the United States; references to “GBP” refer to the British pound, the legal currency of Britain; and references to “INR” refer to Indian Rupees, the legal currency of India. References to GAAP or US GAAP refer to United States generally accepted accounting principles. References to IFRS refer to International Financial Reporting Standards, as issued by the International Accounting Standards Board.

CONTACT:

Page 3 of 9

WNS (HOLDINGS) LIMITED

CONDENSED CONSOLIDATED STATEMENTS OF INCOME

(Unaudited, amounts in millions, except share and per share data)

Page 4 of 9

WNS (HOLDINGS) LIMITED

CONDENSED CONSOLIDATED STATEMENTS OF FINANCIAL POSITION

(Unaudited, amounts in millions, except share and per share data)

Page 5 of 9

Page 6 of 9

About Non-GAAP Financial Measures

The financial information in this release includes certain non-GAAP financial measures that we believe more accurately reflect our core operating performance. Reconciliations of these non-GAAP financial measures to our GAAP operating results are included below. A more detailed discussion of our GAAP results is contained in “Part I –Item 5. Operating and Financial Review and Prospects” in our annual report on Form 20-F filed with the SEC on May 10, 2024.

Revenue less repair payments is a non-GAAP financial measure that is calculated as (a) revenue less (b) in our BFSI segment, payments to repair centers for “fault” repair cases where WNS acts as the principal in its dealings with the third party repair centers and its clients. WNS believes that revenue less repair payments for “fault” repairs reflects more accurately the value addition of the business process management services that it directly provides to its clients. For more details, please see the discussion in “Part I – Item 5. Operating and Financial Review and Prospects – Overview” in our annual report on Form 20-F filed with the SEC on May 10, 2024.

Constant currency revenue less repair payments is a non-GAAP financial measure. We present constant currency revenue less repair payments so that revenue less repair payments may be viewed without the impact of foreign currency exchange rate fluctuations, thereby facilitating period-to-period comparisons of business performance. Constant currency revenue less repair payments is presented by recalculating prior period’s revenue less repair payments denominated in currencies other than in US dollars using the foreign exchange rate used for the latest period, without taking into account the impact of hedging gains/losses. Our non-US dollar denominated revenues include, but are not limited to, revenues denominated in pound sterling, South African rand, Australian dollar and Euro.

WNS also presents or discusses (1) adjusted operating margin, which refers to adjusted operating profit (calculated as operating profit / (loss) excluding goodwill & intangible impairment, share-based compensation expense, acquisition-related expenses or benefits, costs related to the exchange of ADSs to ordinary shares, costs related to change to US GAAP reporting and voluntarily filing on US domestic issuer forms with SEC and amortization of intangible assets) as a percentage of revenue less repair payments, (2) ANI, which is calculated as profit excluding goodwill & intangible impairment, share-based compensation expense, acquisition-related expenses or benefits, costs related to the termination of ADS program and listing of ordinary shares, costs related to the transition to voluntarily reporting on US domestic issuer forms and amortization of intangible assets and including the tax effect thereon, (3) Adjusted net income margin, which refers to ANI as a percentage of revenue less repair payments, and other non-GAAP financial measures included in this release as supplemental measures of its performance.

Acquisition-related expenses or benefits consists of transaction costs, integration expenses, employment-linked earn-out as part of deferred consideration and changes in the fair value of contingent consideration including the impact of present value thereon. WNS presents these non-GAAP financial measures because it believes they assist investors in comparing its performance across reporting periods on a consistent basis by excluding items that are non-recurring in nature and those it believes are not indicative of its core operating performance. In addition, it uses these non-GAAP financial measures (i) to evaluate the effectiveness of its business strategies and (ii) (with certain adjustments) as a factor in evaluating management’s performance when determining incentive compensation. WNS is excluding acquisition-related expenses as described above with effect from fiscal 2023 second quarter.

These non-GAAP financial measures are not meant to be considered in isolation or as a substitute for WNS’ financial results prepared in accordance with US-GAAP.

The company is not able to provide our forward-looking GAAP revenue, profit and earnings per share without unreasonable efforts for a number of reasons, including our inability to predict with a reasonable degree of certainty the payments to repair centers, our future share-based compensation expense under US-GAAP (Share Based payments), amortization of intangibles and acquisition-related expenses or benefits associated with future acquisitions, goodwill impairment and currency fluctuations. As a result, any attempt to provide a reconciliation of the forward-looking GAAP financial measures (revenue, profit, earnings per share) to our forward-looking non-GAAP financial measures (revenue less repair payments*, ANI* and Adjusted diluted earnings per share*, respectively) would imply a degree of likelihood that we do not believe is reasonable.

Page 7 of 9

Reconciliation of revenue (GAAP) to revenue less repair payments (non-GAAP) and constant currency revenue less repair payments (non-GAAP)

Reconciliation of operating income (GAAP to non-GAAP)

Page 8 of 9

Reconciliation of net income (GAAP) to ANI (non-GAAP)

Page 9 of 9