<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2022-01-20</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001852061</issuerCik>
        <issuerName>Generation Asia I Acquisition Ltd</issuerName>
        <issuerTradingSymbol>GAQ</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001846781</rptOwnerCik>
            <rptOwnerName>Kuan Roy</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O GENERATION ASIA I ACQUISITION LTD</rptOwnerStreet1>
            <rptOwnerStreet2>BOUNDARY HALL, CRICKET SQUARE</rptOwnerStreet2>
            <rptOwnerCity>GRAND CAYMAN</rptOwnerCity>
            <rptOwnerState>E9</rptOwnerState>
            <rptOwnerZipCode>KY1-1102</rptOwnerZipCode>
            <rptOwnerStateDescription>CAYMAN ISLANDS</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Executive Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Class B ordinary shares</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>6550000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The Class B ordinary shares will automatically convert into Class A ordinary shares concurrently with or immediately following the consummation of the initial business combination of Generation Asia I Acquisition Limited (the &quot;Issuer&quot;) on a one-for-one basis, subject to adjustment, as described in the section entitled &quot;Description of Securities&quot; in the Issuer's registration statement on Form S-1 (File No. 333-260431).</footnote>
        <footnote id="F2">Reflects shares of the Issuer held of record by Generation Asia LLC (the &quot;Sponsor&quot;). The reporting person is the managing member of the Sponsor. The reporting person disclaims beneficial ownership of the securities reported herein, except to the extent of his pecuniary interest therein. The filing of this form shall not be deemed to be an admission that, for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or otherwise, the reporting person is the beneficial owner of any securities reported herein.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Roy Kuan</signatureName>
        <signatureDate>2022-01-20</signatureDate>
    </ownerSignature>
</ownershipDocument>
