UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 6-K

Report of Foreign Private Issuer

Pursuant to Rule 13a-16 or 15d-16 of

the Securities Exchange Act of 1934

For the quarter ended September 30, 2022

Commission File Number 001-32945

WNS (HOLDINGS) LIMITED

(Translation of Registrant’s name into English)

Gate 4, Godrej & Boyce Complex

Pirojshanagar, Vikhroli (W)

Mumbai 400 079, India

+91-22-6826-2100

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.

Form 20-F  ☑                  Form 40-F  ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):  ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):  ☐

TABLE OF CONTENTS

Other Events

On October 20, 2022, WNS (Holdings) Limited issued an earnings release announcing its fiscal second quarter ended September 30, 2022 results and revised its guidance for fiscal 2023. A copy of the earnings release dated October 20, 2022 is attached hereto as Exhibit 99.1.

Exhibit

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Date: October 20, 2022

EXHIBIT INDEX

Exhibit 99.1

WNS Announces Fiscal 2023 Second Quarter Earnings,

Revises Full Year Guidance

NEW YORK, NY and MUMBAI, INDIA, October 20, 2022 — WNS (Holdings) Limited (WNS) (NYSE: WNS), a leading provider of global Business Process Management (BPM) solutions, today announced results for the fiscal 2023 second quarter ended September 30, 2022.

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 second quarter was $307.1 million, representing an increase of 12.2% versus Q2 of last year and an increase of 4.0% from the previous quarter. Revenue less repair payments* in the second quarter was $289.3 million, an increase of 13.7% year-over-year and 5.3% sequentially. Excluding exchange rate impacts, constant currency revenue less repair payments* in the fiscal second quarter was up 20.4% versus Q2 of last year and 8.2% sequentially. Year-over-year, fiscal Q2 revenue improved as a result of our new client additions, the expansion of existing relationships, our acquisition of Vuram, and increased travel volume which more than offset currency movements net of hedging. Sequentially, growth driven by broad-based revenue momentum, our acquisition of Vuram, and increased travel volume was partially offset by currency movements net of hedging.

Profit in the fiscal second quarter was $33.2 million, as compared to $32.1 million in Q2 of last year and $33.1 million in the previous quarter. Year-over-year, profit increased as a result of revenue growth, improved productivity, favorable currency movements net of hedging, and a lower effective tax rate. These benefits more than offset the impact of wage increases, increased return-to-office costs, higher share-based compensation expense, and increased amortization of intangibles associated with our acquisition of Vuram. Sequentially, Q2 profit increased as a result of revenue growth, reduced share-based compensation expense, and a lower effective tax rate. These benefits were partially offset by increased amortization of intangibles associated with our acquisition of Vuram, wage increases, increased return-to-office costs, higher SG&A expenses driven by compensation costs and the timing of investments, and additional interest expense.

Adjusted net income (ANI)* in Q2 was $46.6 million, as compared to $43.1 million in Q2 of last year and $45.9 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 costs and associated tax impacts, which are excluded from ANI*.

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From a balance sheet perspective, WNS ended Q2 with $265.3 million in cash and investments and $79.5 million in debt. In the second quarter, the company generated $34.5 million in cash from operations and incurred $7.9 million in capital expenditures. In addition, the company paid net $144.2 million towards our acquisition of Vuram, repaid $31.7 million of short-term debt, and took out an $80.0 million term loan for general corporate purposes. WNS also repurchased 358,382 ADSs at an average price of $77.78 per ADS, which impacted Q2 cash by $30.4 million. Second quarter days sales outstanding were 30 days, as compared to 31 days reported in Q2 of last year and 29 days in the previous quarter.

“Our second quarter financial results continue to demonstrate the strength and resiliency in our business model in the midst of a challenging macro environment,” said Keshav Murugesh, WNS’ Chief Executive Officer. “Our ability to deliver technology-led transformation and to help our clients improve their competitive positioning while reducing cost is generating strong, broad-based demand with both new and existing customers. WNS intends to continue investing in enhancing our capabilities, including digital and analytics, to ensure we meet the expanding requirements of the BPM market.”

Fiscal 2023 Guidance

WNS is updating guidance for the fiscal year ending March 31, 2023, as follows:

“The company has updated our forecast for fiscal 2023 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 8% to 12%, or 14% to 18% on a constant currency* basis. This includes approximately 2% inorganic growth related to our acquisition of Vuram. We currently have 98% visibility to the midpoint of the range, consistent with October guidance in previous years. For the year, we expect capital expenditures of up to $40 million.”

Conference Call

WNS will host a conference call on October 20, 2022, 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 400 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 September 30, 2022, WNS had 57,503 professionals across 60 delivery centers worldwide including facilities in Canada, China, Costa Rica, India, the Philippines, Poland, Romania, South Africa, Spain, Sri Lanka, Turkey, the United Kingdom, and the United States. For more information, visit www.wns.com.

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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 2023 guidance, future profitability, our expectations regarding the benefits from our acquisition of Vuram (including the impact of Vuram on our results of operations), 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; the impact of the ongoing COVID-19 pandemic on our and our clients’ business, financial condition, results of operations and cash flows; 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 (including Vuram), and to successfully grow our revenue and expand our service offerings and market share; future regulatory actions and conditions in our operating areas; and our ability to manage the impact of climate change on our business. 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 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 refers to International Financial Reporting Standards, as issued by the International Accounting Standards Board (IFRS).

CONTACT:

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WNS (HOLDINGS) LIMITED

CONDENSED CONSOLIDATED STATEMENTS OF INCOME

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

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WNS (HOLDINGS) LIMITED

CONDENSED CONSOLIDATED STATEMENTS OF FINANCIAL POSITION

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

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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 17, 2022.

For financial statement reporting purposes, WNS has two reportable segments: WNS Global BPM and WNS Auto Claims BPM. Revenue less repair payments is a non-GAAP financial measure that is calculated as (a) revenue less (b) in the auto claims business, 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 17, 2022.

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.

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WNS also presents or discusses (1) adjusted operating margin, which refers to adjusted operating profit (calculated as operating profit / (loss) excluding goodwill impairment, share-based expense and amortization of intangible assets) as a percentage of revenue less repair payments, (2) ANI, which is calculated as profit excluding goodwill impairment, share-based expense 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, (4) net cash, which refers to cash and cash equivalents plus investments less long-term debt (including the current portion) and other non-GAAP financial measures included in this release as supplemental measures of its performance. 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) as a factor in evaluating management’s performance when determining incentive compensation and (ii) to evaluate the effectiveness of its business strategies. 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 IFRS.

The company is not able to provide our forward-looking GAAP revenue, profit and earnings per ADS 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 IFRS 2 (Share Based payments), amortization of intangibles 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 ADS) to our forward-looking non-GAAP financial measures (revenue less repair payments*, ANI* and Adjusted diluted earnings* per ADS, respectively) would imply a degree of likelihood that we do not believe is reasonable.

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

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Reconciliation of cost of revenue (GAAP to non-GAAP)

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Reconciliation of selling and marketing expenses (GAAP to non-GAAP)

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Reconciliation of basic earnings per ADS (GAAP to non-GAAP)

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