Exhibit 99.1
 (WNS LOGO)
    
    WNS (Holdings) Limited
 WNS (Holdings) Limited reports unaudited fiscal 2011 results under
International Financial Reporting Standards
  1 First Time Adoption of International Financial Reporting Standards
  
 1
    
    References to Previous GAAP throughout this release
relate to US GAAP prior to the adoption of IFRS




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##### 



(WNS LOGO)
    
    WNS (Holdings) Limited
  Impact
of IFRS on profit (loss)
  Three months ended
    
    
    Year endedJune 30,
    
    
    September 30,
    
    
    December 31,
    
    
    March 31,
    
    
    March 31,(US$ thousands)
    
    2010
    
    
    2010
    
    
    2010
    
    
    2011
    
    
    2011Profit (loss) as per Previous GAAP
    
    $
    (6,045
    )
    
    $
    4,921
    
    
    $
    5,788
    
    
    $
    5,153
    
    
    $
    9,817Net impact of IFRS adjustment
excluding hedge accounting
    
    
    (121
    )
    
    
    758
    
    
    
    1,098
    
    
    
    (136
    )
    
    
    1,599Profit (loss) excluding hedge
accounting impact under IFRS
    
    
    (6,166
    )
    
    
    5,679
    
    
    
    6,886
    
    
    
    5,017
    
    
    
    11,416Hedge accounting impact under IFRS
    
    
    331
    
    
    
    305
    
    
    
    2,078
    
    
    
    3,783
    
    
    
    6,497Profit (loss) as per IFRS
    
    $
    (5,835
    )
    
    $
    5,984
    
    
    $
    8,964
    
    
    $
    8,800
    
    
    $
    17,913
    Page 2 of 8




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##### 



(WNS LOGO)
    
    WNS (Holdings) Limited
 Impact of exposure draft on hedge accounting:
    IFRS adjustments to profit (loss) and shareholders equity
  Reconciliation
of profit (loss)
 Three months ended
    
    
    Year endedJune 30,
    
    
    September 30,
    
    
    December 31,
    
    
    March 31,
    
    
    March 31,(US$ thousands)
    
    Notes
    
    2010
    
    
    2010
    
    
    2010
    
    
    2011
    
    
    2011Profit (loss) as per Previous
GAAP
    
    
    
    $
    (6,045
    )
    
    $
    4,921
    
    
    $
    5,788
    
    
    $
    5,153
    
    
    $
    9,817Fair value
and deemed cost of certain fixed assets
    
    1
    
    
    467
    
    
    
    454
    
    
    
    446
    
    
    
    373
    
    
    
    1,740Share based compensation expense
    
    2
    
    
    450
    
    
    
    413
    
    
    
    41
    
    
    
    (109
    )
    
    
    795Debt issue cost and interest expense
    
    3
    
    
    333
    
    
    
    (14
    )
    
    
    (59
    )
    
    
    (41
    )
    
    
    219Employee benefits
    
    4
    
    
    (12
    )
    
    
    14
    
    
    
    15
    
    
    
    32
    
    
    
    49Deferred tax
    
    5
    
    
    (1,085
    )
    
    
    10
    
    
    
    781
    
    
    
    (145
    )
    
    
    (439
    )Fair value of deposits
    
    6
    
    
    
    
    
    
    (1
    )
    
    
    (5
    )
    
    
    (5
    )
    
    
    (11
    )Noncontrolling interest
    
    7
    
    
    (274
    )
    
    
    (94
    )
    
    
    (121
    )
    
    
    (241
    )
    
    
    (730
    )Business combination (contingent
consideration)
    
    8
    
    
    
    
    
    
    (23
    )
    
    
    
    
    
    
    
    
    
    
    (23
    )Total IFRS adjustment excluding
hedge accounting
    
    
    
    $
    (121
    )
    
    $
    759
    
    
    $
    1,098
    
    
    $
    (136
    )
    
    $
    1,600Profit (loss) excluding hedge
accounting impact under IFRS
    
    
    
    
    (6,166
    )
    
    
    5,680
    
    
    
    6,886
    
    
    
    5,017
    
    
    
    11,417Hedge accounting
    
    
    
    
    331
    
    
    
    305
    
    
    
    2,078
    
    
    
    3,782
    
    
    
    6,496Profit (loss) as per IFRS
    
    
    
    $
    (5,835
    )
    
    $
    5,985
    
    
    $
    8,964
    
    
    $
    8,799
    
    
    $
    17,913
  Page 3 of 8




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##### 



(WNS LOGO)
    
    WNS (Holdings) Limited
 Reconciliation of shareholders equity
 April 1,
    
    
    June 30,
    
    
    September 30,
    
    
    December 31,
    
    
    March 31,(US$ thousands)
    
    Notes
    
    2010
    
    
    2010
    
    
    2010
    
    
    2010
    
    
    2011Shareholders equity under Previous GAAP
    
    
    
    $
    253,603
    
    
    $
    240,392
    
    
    $
    253,499
    
    
    $
    261,128
    
    
    $
    271,219Fair value
and deemed cost of certain fixed assets
    
    1
    
    
    (3,153
    )
    
    
    (2591
    )
    
    
    (2,225
    )
    
    
    (1,775
    )
    
    
    (1,414
    )Business combination (contingent
consideration)
    
    8
    
    
    (471
    )
    
    
    (470
    )
    
    
    (490
    )
    
    
    (482
    )
    
    
    (503
    )Employee benefits
    
    4
    
    
    (411
    )
    
    
    (47
    )
    
    
    (216
    )
    
    
    (266
    )
    
    
    (393
    )Noncontrolling interest
    
    7
    
    
    (1,398
    )
    
    
    (1,528
    )
    
    
    (1,696
    )
    
    
    (1,663
    )
    
    
    (1,767
    )Debt refinancing
    
    3
    
    
    
    
    
    
    333
    
    
    
    320
    
    
    
    258
    
    
    
    219Fair value of deposits
    
    6
    
    
    
    
    
    
    
    
    
    
    (1
    )
    
    
    (4
    )
    
    
    (10
    )Net total impact
    
    
    
    
    (5,433
    )
    
    
    (4,303
    )
    
    
    (4,308
    )
    
    
    (3,932
    )
    
    
    (3,868
    )Deferred tax impact on above transactions
    
    5
    
    
    302
    
    
    
    471
    
    
    
    466
    
    
    
    449
    
    
    
    296Deferred tax impact on share based
compensation and hedge accounting
    
    5
    
    
    (2,128
    )
    
    
    (2,219
    )
    
    
    (2,612
    )
    
    
    (2,393
    )
    
    
    (2,791
    )Total IFRS adjustments
    
    
    
    
    (7,259
    )
    
    
    (6,051
    )
    
    
    (6,454
    )
    
    
    (5,876
    )
    
    
    (6,363
    )Shareholders equity under IFRS
    
    
    
    $
    246,344
    
    
    $
    234,341
    
    
    $
    247,045
    
    
    $
    255,252
    
    
    $
    264,856
   Notes
to reconciliation of profit (loss) and shareholders equity
 1. Fair valuation of fixed assets
  2. Share based compensation expense
   Page 4 of 8




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##### 



(WNS LOGO)
    
    WNS (Holdings) Limited
 3. Debt issue cost and interest expense
   4. Employee benefits
    5. Deferred tax
  a.
    
    tax impact of all IFRS adjustments;b.
    
    application of substantially enacted tax rate whereas under Previous GAAP, these are created
on enacted tax rate; andc.
    
    treatment of share based compensation.
   6. Fair valuation of deposits
    Page 5 of 8




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##### 



(WNS LOGO)
    
    WNS (Holdings) Limited
 7. Noncontrolling interest
    8. Business combination (contingent consideration)
  Business Combinations
   Page 6 of 8




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##### 



(WNS LOGO)
    
    WNS (Holdings) Limited
 IFRS impact on earnings per ordinary share, basic and diluted
  Three months ended
    
    
    Year endedJune 30,
    
    
    September 30,
    
    
    December 31,
    
    
    March 31,
    
    
    March 31,(US$)
    
    2010
    
    
    2010
    
    
    2010
    
    
    2011
    
    
    2011Basic (loss) earnings per
ordinary share under
Previous GAAP
    
    $
    (0.14
    )
    
    $
    0.11
    
    
    $
    0.13
    
    
    $
    0.11
    
    
    $
    0.21Net impact of IFRS
adjustments excluding
impact of hedge
accounting
    
    
    (0.00
    )
    
    
    0.02
    
    
    
    0.02
    
    
    
    (0.00
    )
    
    
    0.04Impact of hedge accounting
    
    
    0.01
    
    
    
    0.01
    
    
    
    0.05
    
    
    
    0.09
    
    
    
    0.15Basic (loss) earnings per
ordinary share under IFRS
    
    $
    (0.13
    )
    
    $
    0.14
    
    
    $
    0.20
    
    
    $
    0.20
    
    
    $
    0.40
  Three months ended
    
    
    Year endedJune 30,
    
    
    September 30,
    
    
    December 31,
    
    
    March 31,
    
    
    March 31,(US$)
    
    2010
    
    
    2010
    
    
    2010
    
    
    2011
    
    
    2011Diluted (loss) earnings per
ordinary share under
Previous GAAP
    
    $
    (0.14
    )
    
    $
    0.11
    
    
    $
    0.13
    
    
    $
    0.11
    
    
    $
    0.21Net impact of IFRS
adjustments excluding
impact of hedge
accounting
    
    
    (0.00
    )
    
    
    0.01
    
    
    
    0.02
    
    
    
    (0.00
    )
    
    
    0.04Impact of hedge accounting
    
    
    0.01
    
    
    
    0.01
    
    
    
    0.05
    
    
    
    0.09
    
    
    
    0.15Diluted (loss) earnings per
ordinary share under IFRS
    
    $
    (0.13
    )
    
    $
    0.13
    
    
    $
    0.20
    
    
    $
    0.19
    
    
    $
    0.40
  Page 7 of 8




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##### 



(WNS LOGO)
    
    WNS (Holdings) Limited
 Safe Harbor Statement under the provisions of the United States Private Securities Litigation
Reform Act of 1995
   About WNS
   Investors:
    
    Media:Alok Misra
    
    Sumi GuptaChief Financial Officer
    
    Public RelationsWNS (Holdings) Limited
    
    WNS (Holdings) Limited+1 213 337 3653 Extn: 66743
    
    +91 (22) 4095 2263alok.misra@wns.com
    
    sumi.gupta@wns.com; pr@wns.com
  Page 8 of 8