<SEC-DOCUMENT>0000899243-18-000313.txt : 20180103
<SEC-HEADER>0000899243-18-000313.hdr.sgml : 20180103
<ACCEPTANCE-DATETIME>20180103174734
ACCESSION NUMBER:		0000899243-18-000313
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20171231
FILED AS OF DATE:		20180103
DATE AS OF CHANGE:		20180103

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Chandra Amit
		CENTRAL INDEX KEY:			0001560778

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-33626
		FILM NUMBER:		18507073

	MAIL ADDRESS:	
		STREET 1:		BAIN CAPITAL ADVISORS (INDIA) PVT LTD
		STREET 2:		2ND FL, FREE PRESS HOUSE, NARIMAN POINT
		CITY:			MUMBAI
		STATE:			K7
		ZIP:			400 021

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Genpact LTD
		CENTRAL INDEX KEY:			0001398659
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-MANAGEMENT CONSULTING SERVICES [8742]
		IRS NUMBER:				980533350
		STATE OF INCORPORATION:			D0
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		CANON'S COURT
		STREET 2:		22 VICTORIA STREET
		CITY:			HAMILTON
		STATE:			D0
		ZIP:			HM 12
		BUSINESS PHONE:		4412952244

	MAIL ADDRESS:	
		STREET 1:		CANON'S COURT
		STREET 2:		22 VICTORIA STREET
		CITY:			HAMILTON
		STATE:			D0
		ZIP:			HM 12
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2017-12-31</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001398659</issuerCik>
        <issuerName>Genpact LTD</issuerName>
        <issuerTradingSymbol>G</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001560778</rptOwnerCik>
            <rptOwnerName>Chandra Amit</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O BAIN CAPITAL ADVISORS (INDIA) PVT LT</rptOwnerStreet1>
            <rptOwnerStreet2>2ND FL, FREE PRESS HOUSE, NARIMAN POINT</rptOwnerStreet2>
            <rptOwnerCity>MUMBAI</rptOwnerCity>
            <rptOwnerState>K7</rptOwnerState>
            <rptOwnerZipCode>40021</rptOwnerZipCode>
            <rptOwnerStateDescription>INDIA</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Shares</value>
            </securityTitle>
            <transactionDate>
                <value>2017-12-31</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>427</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>31.74</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>25326</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Represents shares withheld for payment of taxes upon the vesting of restricted share units granted under the Genpact Limited 2007 Omnibus Incentive Compensation Plan and exempt under Rule 16b-3.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Amit Chandra</signatureName>
        <signatureDate>2018-01-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
