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        <issuerName>COGNIZANT TECHNOLOGY SOLUTIONS CORP</issuerName>
        <issuerTradingSymbol>CTSH</issuerTradingSymbol>
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            <rptOwnerName>McLoughlin Karen</rptOwnerName>
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            <rptOwnerStreet1>COGNIZANT TECHNOLOGY SOLUTIONS CORP.</rptOwnerStreet1>
            <rptOwnerStreet2>500 FRANK W. BURR BLVD.</rptOwnerStreet2>
            <rptOwnerCity>TEANECK</rptOwnerCity>
            <rptOwnerState>NJ</rptOwnerState>
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            <officerTitle>Chief Financial Officer</officerTitle>
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    <footnotes>
        <footnote id="F1">Shares of the Company's Class A Common Stock received from the vesting of 1/12 of the restricted stock unit award granted on December 1, 2014.</footnote>
        <footnote id="F2">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="F3">Shares of the Company's Class A Common Stock received from the vesting of 1/12 of the restricted stock unit award granted on November 30, 2015.</footnote>
        <footnote id="F4">Shares of the Company's Class A Common Stock received from the vesting of 1/12 of the restricted stock unit award granted on March 2, 2017.</footnote>
        <footnote id="F5">Each restricted stock unit represents a contingent right to receive one share of the Company's Class A Common Stock.</footnote>
        <footnote id="F6">The restricted stock units were granted on December 1, 2014 under the Cognizant Technology Solutions Corporation 2009 Incentive Compensation Plan and vest in quarterly installments over three years, commencing on March 1, 2015, with 1/12th of the stock units vesting on each quarterly vesting date so that the stock units will be fully vested on the twelfth quarterly vesting date. The stock units will be fully vested on December 1, 2017.</footnote>
        <footnote id="F7">The restricted stock units were granted on November 30, 2015 under the Cognizant Technology Solutions Corporation 2009 Incentive Compensation Plan and vest in quarterly installments over three years, commencing on March 1, 2016, with 1/12th of the stock units vesting on each quarterly vesting date so that the stock units will be fully vested on the twelfth quarterly vesting date. The stock units will be fully vested on December 1, 2018.</footnote>
        <footnote id="F8">The restricted stock units were granted on March 2, 2017 under the Cognizant Technology Solutions Corporation 2009 Incentive Compensation Plan and vest in quarterly installments over three years, commencing on June 2, 2017, with 1/12th of the stock units vesting on each quarterly vesting date so that the stock units will be fully vested on the twelfth quarterly vesting date. The stock units will be fully vested on March 2, 2020.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Harry Demas, on behalf of Karen McLoughlin, by Power of Attorney</signatureName>
        <signatureDate>2017-09-06</signatureDate>
    </ownerSignature>
</ownershipDocument>
