IGate (IGTE) 10-K 2012 FY Annual report

Exhibit 23.1

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the following Registration Statements:

1. Registration Statement (Form S-8 No. 333-20033) pertaining to the Mastech Corporation 1996 Stock Incentive Plan of iGATE Corporation,

2. Registration Statement (Form S-8 No. 333-71057) pertaining to the Mastech Corporation Amended and Restated 1996 Stock Incentive Plan of iGATE Corporation,

3. Registration Statement (Form S-8 No. 333-134689) pertaining to the iGATE Corporation 2006 Stock Incentive Plan of iGATE Corporation,

4. Registration Statement (Form S-3 No. 333-170042) of iGATE Corporation, and

5. Registration Statement (Form S-3 No. 333-177100) of iGate Corporation.

of our reports dated March 18, 2013, with respect to the 2012 consolidated financial statements of iGATE Corporation and the 2012 effectiveness of internal control over financial reporting of iGATE Corporation, included in this Annual Report on Form 10-K of iGATE Corporation for the year ended December 31, 2012.

/s/ Ernst and Young Associates                

Gurgaon, India

March 18, 2013