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 month of June 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

+91-22-4095-2100

(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

WNS (Holdings) Limited is incorporating by reference the information and exhibits set forth in this Form 6-K into its registration statements on Form S-8 filed on July 31, 2006 (File No: 333-136168), Form S-8 filed on February 17, 2009 (File No. 333-157356), Form S-8 filed on September 15, 2011 (File No. 333-176849), Form S-8 filed on September 27, 2013 (File No. 333-191416), Form S-8 filed on October 11, 2016 (File No. 333-214042) Form S-8 filed on October 31, 2018 (File No. 333-228070) and Form S-8 filed on October 21, 2020 (File No. 333-249577).

Other Events

On June 14, 2022, WNS (Holdings) Limited announced the extension of its employment agreement with its Group Chief Executive Officer, Keshav R. Murugesh to 2025

A copy of the press release dated June 14, 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: June 14, 2022

EXHIBIT INDEX

Exhibit 99.1

WNS Announces Contract Extension for CEO Keshav Murugesh to 2025

NEW YORK and MUMBAI, June 14, 2022 — WNS (Holdings) Limited (NYSE: WNS), a leading provider of global Business Process Management (BPM) solutions, today announced its Board of Directors has agreed with Keshav R. Murugesh, Chief Executive Officer (CEO), to extend the terms of his employment agreement to August 17, 2025.

“Keshav’s vision and leadership over the past 12 years have enabled WNS to navigate the rapidly changing services landscape and emerge a true leader in the BPM industry,” said Timothy Main, WNS’ Chairman of the Board. “Keshav and his team have driven the company’s transition from a legacy labor arbitrage BPO firm to a domain-intensive BPM solutions company delivering digital transformation for clients by combining technology, analytics, process expertise, and specialized resources. The Board of Directors remain confident in Keshav’s ability to continue leading WNS into the future, to successfully execute on our strategic plans, and to deliver enhanced value for all of our key stakeholders.”

“The BPM market continues to expand and evolve, as clients increasingly look for strategic partners to help them transform their business models and improve competitive positioning,” said Keshav R. Murugesh, WNS’ CEO. “I am proud of the progress we have made in bringing WNS to this point, and I am equally excited about the opportunity to help lead this company into the next phase of our ongoing journey.”

Since joining WNS as CEO in February of 2010, Mr. Murugesh has helped transform the company into an innovative BPM firm which works closely with clients to “co-create” customized solutions. WNS’ differentiated capabilities and unique approach have enabled the company to deliver best-in-class revenue growth and margins. Today, WNS has over $1 billion in revenue and more than 52,000 resources delivering services from 12 countries across the globe. Prior to this extension, Mr. Murugesh’s contract was set to expire in August 2023.

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 March 31, 2022, WNS had 52,081 professionals across 54 delivery centers worldwide including facilities in 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 Provision

This document includes information which may constitute forward-looking statements made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995, the accuracy of which are necessarily subject to risks, uncertainties, and assumptions as to future events. Factors that could cause actual results to differ materially from those expressed or implied are discussed in our most recent Form 20-F and other filings with the Securities and Exchange Commission. WNS undertakes no obligation to update or revise any forward-looking statements, whether as a result of new information, future events, or otherwise.

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