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    <issuer>
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        <issuerName>COGNIZANT TECHNOLOGY SOLUTIONS CORP</issuerName>
        <issuerTradingSymbol>CTSH</issuerTradingSymbol>
    </issuer>

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        <reportingOwnerId>
            <rptOwnerCik>0001541704</rptOwnerCik>
            <rptOwnerName>McLoughlin Karen</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>COGNIZANT TECHNOLOGY SOLUTIONS CORP.</rptOwnerStreet1>
            <rptOwnerStreet2>500 FRANK W. BURR BLVD.</rptOwnerStreet2>
            <rptOwnerCity>TEANECK</rptOwnerCity>
            <rptOwnerState>NJ</rptOwnerState>
            <rptOwnerZipCode>07666</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Financial Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

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    <footnotes>
        <footnote id="F1">Shares of Class A Common Stock of Cognizant Technology Solutions Corporation (the &quot;Company&quot;) received from the vesting of 1/12th of the restricted stock unit (&quot;RSU&quot;) award granted on February 26, 2018.</footnote>
        <footnote id="F2">Each RSU represents a contingent right to receive one share of the Company's Class A Common Stock.</footnote>
        <footnote id="F3">Includes 403 shares acquired under the Cognizant Technology Solutions Corporation Employee Stock Purchase Plan, as amended, on March 31, 2020.</footnote>
        <footnote id="F4">Represents the portion of shares of Class A Common Stock that the Company determined to settle in cash to pay applicable tax withholding.</footnote>
        <footnote id="F5">Shares of Class A Common Stock of the Company received from the vesting of 1/12th of the RSU award granted on February 26, 2019.</footnote>
        <footnote id="F6">The RSUs were granted on February 26, 2018 under the Cognizant Technology Solutions Corporation 2017 Incentive Award Plan and vest in quarterly installments over three years, commencing on June 1, 2018, with 1/12th of the RSUs vesting on each quarterly vesting date so that the RSUs will be fully vested on the twelfth quarterly vesting date. The RSUs will be fully vested on March 1, 2021.</footnote>
        <footnote id="F7">The RSUs were granted on February 26, 2019 under the Cognizant Technology Solutions Corporation 2017 Incentive Award Plan and vest in quarterly installments over three years, commencing on June 1, 2019, with 1/12th of the RSUs vesting on each quarterly vesting date so that the RSUs will be fully vested on the twelfth quarterly vesting date. The RSUs will be fully vested on March 1, 2022.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Harry Demas, on behalf of Karen McLoughlin, by Power of Attorney</signatureName>
        <signatureDate>2020-06-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
