Exhibit 3.1

CERTIFICATE OF AMENDMENT

TO

RESTATED CERTIFICATE OF INCORPORATION

OF

COGNIZANT TECHNOLOGY SOLUTIONS CORPORATION

The undersigned, for purposes of amending the Restated Certificate of Incorporation, as amended (the “Certificate”) of Cognizant Technology Solutions Corporation, a corporation organized and existing under and by virtue of the General Corporation Law of the State of Delaware, does hereby certify as follows:

FIRST: The name of the Corporation is Cognizant Technology Solutions Corporation (the “Corporation”).

SECOND: The Certificate was filed with the Office of the Secretary of State of the State of Delaware on February 7, 2003 and was amended on May 26, 2004, June 13, 2006, June 2, 2011 and June 5, 2012.

THIRD: That Article VIII of the Certificate is hereby amended and restated to read, in its entirety, as follows:

“(1) The Board of Directors shall consist of not less than three directors, the exact number of directors to be determined from time to time by resolution adopted by the affirmative vote of a majority of the Board of Directors. The directors, other than directors elected separately as a class by the holders of any one or more series of Preferred Stock, shall be and are divided into classes, with the terms of the classes elected at the annual meetings of stockholders held in 2011, 2012 and 2013, respectively, expiring at the third annual meeting of stockholders held after the election of such class of directors; provided that such division shall terminate at the third annual meeting of stockholders held after the 2013 annual meeting of stockholders. Notwithstanding the preceding sentence, but subject to the rights of the holders of any one or more series of Preferred Stock to elect directors separately as a class, each director elected by the stockholders after the 2013 annual meeting of stockholders shall serve for a term expiring at the first annual meeting of stockholders held after such director’s election, subject, however, to prior death, resignation, retirement, disqualification or removal from office.

(2) Any newly created directorship on the Board of Directors that results from an increase in the number of directors or any vacancy occurring in the Board of Directors shall be filled only by a majority vote of the directors then in office, although less than a quorum, or by a sole remaining director. Directors so chosen shall hold office for a term expiring at the annual meeting of stockholders at which the term of the class to which they have been elected expires or, following the termination of the division of directors into three classes, directors so chosen shall hold office for a term expiring at the next annual meeting of stockholders held after their election as directors.

(3) Subject to the rights of the holders of any one or more series of Preferred Stock to elect additional directors under specific circumstances, (i) a director serving in a class of directors elected for a term expiring at the third annual meeting of stockholders following the election of such class shall be removable only for cause, and all other directors shall be removable either with or without cause, and (ii) the removal of any director, whether with or without cause, shall require the affirmative votes of the holders of at least 66  ²/₃ percent in voting power of all outstanding shares of the corporation entitled to vote generally in the election of directors, voting as a single class.

(4) Notwithstanding the foregoing, whenever the holders of any one or more series of Preferred Stock issued by the corporation shall have the right, voting separately as a series or separately as a class with one or more such other series, to elect director at an annual or special meeting of stockholders, the election, term of office, removal, filling of vacancies and other features of such directorships shall be governed by the terms of this Restated Certificate of Incorporation (including any certificate of designations relating to any series of preferred stock) applicable thereto, and such directors so elected shall not be divided into classes pursuant to this Article VIII unless expressly provided by such terms.”

FOURTH: Except as expressly amended herein, all other provisions of the Certificate shall remain in full force and effect.

FIFTH: That the foregoing amendments were duly adopted by the Board of Directors and by the stockholders of the Corporation in accordance with the applicable provisions of Section 242 of the General Corporation Law of the State of Delaware.

* * * * * * *

IN WITNESS WHEREOF, the undersigned, being a duly authorized officer of the Corporation, does hereby execute this Certificate of Amendment to the Restated Certificate of Incorporation this 4th day of June, 2013.