v3.25.2
Document and Entity Information
Jul. 07, 2025
Document And Entity Information [Line Items]  
Document Type 8-K
Document Period End Date Jul. 07, 2025
Entity Registrant Name WNS (HOLDINGS) LIMITED
Entity Incorporation State Country Code Y9
Entity File Number 001-32945
Entity Tax Identification Number 00-0000000
Entity Address Address Line 1 515 Madison Avenue, 8th Floor
Entity Address City Or Town New York
Entity Address State Or Province NY
Entity Address Postal Zip Code 10022
Country Region 91
City Area Code 22
Local Phone Number 6826-2100
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Security 12b Title Ordinary share, par value 10 pence per share
Trading Symbol WNS
Security Exchange Name NYSE
Entity Emerging Growth Company false
Amendment Flag false
Entity Central Index Key 0001356570
Other Business [Member]  
Document And Entity Information [Line Items]  
Entity Address Address Line 1 Gate 4, Godrej & Boyce Complex
Entity Address Address Line 2 Pirojshanagar
Entity Address Address Line 3 Vikhroli (W)
Entity Address City Or Town Mumbai
Entity Address Country IN
Entity Address Postal Zip Code 400 079
Other Address [Member]  
Document And Entity Information [Line Items]  
Entity Address Address Line 1 HYLO, 23rd Floor, 103-105 Bunhill Row, Old street
Entity Address City Or Town London
Entity Address Postal Zip Code ECY1Y 8LZ