<?xml version="1.0" encoding="UTF-8"?>
<!--NOS V1.0 (10-04-2026)-->
<xbrli:xbrl xmlns:in-capmkt="https://www.sebi.gov.in/xbrl/2024-05-31/in-capmkt" xmlns:in-capmkt-ent="https://www.sebi.gov.in/xbrl/Notice_Of_Shareholders_Meeting/2024-05-31/in-capmkt/in-capmkt-ent" xmlns:in-capmkt-roles="https://www.sebi.gov.in/xbrl/Notice_Of_Shareholders_Meeting/2024-05-31/in-capmkt-roles" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:nonnum="http://www.xbrl.org/dtr/type/non-numeric" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:net="http://www.xbrl.org/2009/role/net" xmlns:num="http://www.xbrl.org/dtr/type/numeric" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:iso4217="http://www.xbrl.org/2003/iso4217" xmlns:negated="http://www.xbrl.org/2009/role/negated" xmlns:xbrldi="http://xbrl.org/2006/xbrldi" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xl="http://www.xbrl.org/2003/XLink"><link:schemaRef xlink:type="simple" xlink:href="in-capmkt-ent-2024-05-31.xsd"/><xbrli:context id="MainI"><xbrli:entity><xbrli:identifier scheme="https://www.sebi.gov.in/in-capmkt/ScripCode">533543</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:instant>2026-08-12</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="D_DetailofRPT1"><xbrli:entity><xbrli:identifier scheme="https://www.sebi.gov.in/in-capmkt/ScripCode">533543</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2026-08-12</xbrli:startDate><xbrli:endDate>2026-08-12</xbrli:endDate></xbrli:period><xbrli:scenario><xbrldi:typedMember dimension="in-capmkt:RelatedPartyTransactionAxis"><in-capmkt:RelatedPartyTransactionDomain>RelatedPartyTransactionDomain1</in-capmkt:RelatedPartyTransactionDomain></xbrldi:typedMember></xbrli:scenario></xbrli:context><xbrli:context id="D_DetailofRPT2"><xbrli:entity><xbrli:identifier scheme="https://www.sebi.gov.in/in-capmkt/ScripCode">533543</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2026-08-12</xbrli:startDate><xbrli:endDate>2026-08-12</xbrli:endDate></xbrli:period><xbrli:scenario><xbrldi:typedMember dimension="in-capmkt:RelatedPartyTransactionAxis"><in-capmkt:RelatedPartyTransactionDomain>RelatedPartyTransactionDomain2</in-capmkt:RelatedPartyTransactionDomain></xbrldi:typedMember></xbrli:scenario></xbrli:context><xbrli:context id="D_DetailofRPT3"><xbrli:entity><xbrli:identifier scheme="https://www.sebi.gov.in/in-capmkt/ScripCode">533543</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2026-08-12</xbrli:startDate><xbrli:endDate>2026-08-12</xbrli:endDate></xbrli:period><xbrli:scenario><xbrldi:typedMember dimension="in-capmkt:RelatedPartyTransactionAxis"><in-capmkt:RelatedPartyTransactionDomain>RelatedPartyTransactionDomain3</in-capmkt:RelatedPartyTransactionDomain></xbrldi:typedMember></xbrli:scenario></xbrli:context><xbrli:context id="D_DetailofResolution1"><xbrli:entity><xbrli:identifier scheme="https://www.sebi.gov.in/in-capmkt/ScripCode">533543</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2026-08-12</xbrli:startDate><xbrli:endDate>2026-08-12</xbrli:endDate></xbrli:period><xbrli:scenario><xbrldi:typedMember dimension="in-capmkt:ResolutionOrAgendaAxis"><in-capmkt:ResolutionOrAgendaDomain>ResolutionOrAgendaDomain1</in-capmkt:ResolutionOrAgendaDomain></xbrldi:typedMember></xbrli:scenario></xbrli:context><xbrli:context id="I_DetailofResolution1"><xbrli:entity><xbrli:identifier scheme="https://www.sebi.gov.in/in-capmkt/ScripCode">533543</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:instant>2026-08-12</xbrli:instant></xbrli:period><xbrli:scenario><xbrldi:typedMember dimension="in-capmkt:ResolutionOrAgendaAxis"><in-capmkt:ResolutionOrAgendaDomain>ResolutionOrAgendaDomain1</in-capmkt:ResolutionOrAgendaDomain></xbrldi:typedMember></xbrli:scenario></xbrli:context><xbrli:context id="D_DetailofResolution2"><xbrli:entity><xbrli:identifier scheme="https://www.sebi.gov.in/in-capmkt/ScripCode">533543</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2026-08-12</xbrli:startDate><xbrli:endDate>2026-08-12</xbrli:endDate></xbrli:period><xbrli:scenario><xbrldi:typedMember dimension="in-capmkt:ResolutionOrAgendaAxis"><in-capmkt:ResolutionOrAgendaDomain>ResolutionOrAgendaDomain2</in-capmkt:ResolutionOrAgendaDomain></xbrldi:typedMember></xbrli:scenario></xbrli:context><xbrli:context id="I_DetailofResolution2"><xbrli:entity><xbrli:identifier scheme="https://www.sebi.gov.in/in-capmkt/ScripCode">533543</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:instant>2026-08-12</xbrli:instant></xbrli:period><xbrli:scenario><xbrldi:typedMember dimension="in-capmkt:ResolutionOrAgendaAxis"><in-capmkt:ResolutionOrAgendaDomain>ResolutionOrAgendaDomain2</in-capmkt:ResolutionOrAgendaDomain></xbrldi:typedMember></xbrli:scenario></xbrli:context><xbrli:context id="D_DetailofResolution3"><xbrli:entity><xbrli:identifier scheme="https://www.sebi.gov.in/in-capmkt/ScripCode">533543</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2026-08-12</xbrli:startDate><xbrli:endDate>2026-08-12</xbrli:endDate></xbrli:period><xbrli:scenario><xbrldi:typedMember dimension="in-capmkt:ResolutionOrAgendaAxis"><in-capmkt:ResolutionOrAgendaDomain>ResolutionOrAgendaDomain3</in-capmkt:ResolutionOrAgendaDomain></xbrldi:typedMember></xbrli:scenario></xbrli:context><xbrli:context id="I_DetailofResolution3"><xbrli:entity><xbrli:identifier scheme="https://www.sebi.gov.in/in-capmkt/ScripCode">533543</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:instant>2026-08-12</xbrli:instant></xbrli:period><xbrli:scenario><xbrldi:typedMember dimension="in-capmkt:ResolutionOrAgendaAxis"><in-capmkt:ResolutionOrAgendaDomain>ResolutionOrAgendaDomain3</in-capmkt:ResolutionOrAgendaDomain></xbrldi:typedMember></xbrli:scenario></xbrli:context><xbrli:context id="D_DetailofResolution4"><xbrli:entity><xbrli:identifier scheme="https://www.sebi.gov.in/in-capmkt/ScripCode">533543</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2026-08-12</xbrli:startDate><xbrli:endDate>2026-08-12</xbrli:endDate></xbrli:period><xbrli:scenario><xbrldi:typedMember dimension="in-capmkt:ResolutionOrAgendaAxis"><in-capmkt:ResolutionOrAgendaDomain>ResolutionOrAgendaDomain4</in-capmkt:ResolutionOrAgendaDomain></xbrldi:typedMember></xbrli:scenario></xbrli:context><xbrli:context id="I_DetailofResolution4"><xbrli:entity><xbrli:identifier scheme="https://www.sebi.gov.in/in-capmkt/ScripCode">533543</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:instant>2026-08-12</xbrli:instant></xbrli:period><xbrli:scenario><xbrldi:typedMember dimension="in-capmkt:ResolutionOrAgendaAxis"><in-capmkt:ResolutionOrAgendaDomain>ResolutionOrAgendaDomain4</in-capmkt:ResolutionOrAgendaDomain></xbrldi:typedMember></xbrli:scenario></xbrli:context><xbrli:context id="D_DetailofResolution5"><xbrli:entity><xbrli:identifier scheme="https://www.sebi.gov.in/in-capmkt/ScripCode">533543</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2026-08-12</xbrli:startDate><xbrli:endDate>2026-08-12</xbrli:endDate></xbrli:period><xbrli:scenario><xbrldi:typedMember dimension="in-capmkt:ResolutionOrAgendaAxis"><in-capmkt:ResolutionOrAgendaDomain>ResolutionOrAgendaDomain5</in-capmkt:ResolutionOrAgendaDomain></xbrldi:typedMember></xbrli:scenario></xbrli:context><xbrli:context id="I_DetailofResolution5"><xbrli:entity><xbrli:identifier scheme="https://www.sebi.gov.in/in-capmkt/ScripCode">533543</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:instant>2026-08-12</xbrli:instant></xbrli:period><xbrli:scenario><xbrldi:typedMember dimension="in-capmkt:ResolutionOrAgendaAxis"><in-capmkt:ResolutionOrAgendaDomain>ResolutionOrAgendaDomain5</in-capmkt:ResolutionOrAgendaDomain></xbrldi:typedMember></xbrli:scenario></xbrli:context><xbrli:context id="D_DetailofResolution6"><xbrli:entity><xbrli:identifier scheme="https://www.sebi.gov.in/in-capmkt/ScripCode">533543</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2026-08-12</xbrli:startDate><xbrli:endDate>2026-08-12</xbrli:endDate></xbrli:period><xbrli:scenario><xbrldi:typedMember dimension="in-capmkt:ResolutionOrAgendaAxis"><in-capmkt:ResolutionOrAgendaDomain>ResolutionOrAgendaDomain6</in-capmkt:ResolutionOrAgendaDomain></xbrldi:typedMember></xbrli:scenario></xbrli:context><xbrli:context id="I_DetailofResolution6"><xbrli:entity><xbrli:identifier scheme="https://www.sebi.gov.in/in-capmkt/ScripCode">533543</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:instant>2026-08-12</xbrli:instant></xbrli:period><xbrli:scenario><xbrldi:typedMember dimension="in-capmkt:ResolutionOrAgendaAxis"><in-capmkt:ResolutionOrAgendaDomain>ResolutionOrAgendaDomain6</in-capmkt:ResolutionOrAgendaDomain></xbrldi:typedMember></xbrli:scenario></xbrli:context><xbrli:unit id="INR"><xbrli:measure>iso4217:INR</xbrli:measure></xbrli:unit><xbrli:unit id="pure"><xbrli:measure>xbrli:pure</xbrli:measure></xbrli:unit><in-capmkt:NameOfTheCompany contextRef="MainI">BROOKS LABORATORIES LIMITED</in-capmkt:NameOfTheCompany><in-capmkt:NSESymbol contextRef="MainI">BROOKS</in-capmkt:NSESymbol><in-capmkt:TypeOfAnnouncement contextRef="MainI">New</in-capmkt:TypeOfAnnouncement><in-capmkt:DateOfOccurrenceOfEvent contextRef="MainI">2026-09-03</in-capmkt:DateOfOccurrenceOfEvent><in-capmkt:TimeOfOccurrenceOfEvent contextRef="MainI">09:00:00</in-capmkt:TimeOfOccurrenceOfEvent><in-capmkt:DateOfReport contextRef="MainI">2026-08-12</in-capmkt:DateOfReport><in-capmkt:EventForNoticeOfShareholdersMeeting contextRef="MainI">Annual General Meeting</in-capmkt:EventForNoticeOfShareholdersMeeting><in-capmkt:ModeOfShareholdersMeeting contextRef="MainI">Video Conference (VC) or Other Audio-Visual Means (OAVM)</in-capmkt:ModeOfShareholdersMeeting><in-capmkt:NumberOfShareholdersMeeting contextRef="MainI">24</in-capmkt:NumberOfShareholdersMeeting><in-capmkt:DayOfShareholdersMeeting contextRef="MainI">THURSDAY</in-capmkt:DayOfShareholdersMeeting><in-capmkt:DateOfShareholdersMeeting contextRef="MainI">2026-09-03</in-capmkt:DateOfShareholdersMeeting><in-capmkt:ShareholdersMeetingCommencementTime contextRef="MainI">09:00:00</in-capmkt:ShareholdersMeetingCommencementTime><in-capmkt:PlaceOfShareholdersMeeting contextRef="MainI">BADDI</in-capmkt:PlaceOfShareholdersMeeting><in-capmkt:NumberOfAgendaOrBusinessToBeTransacted contextRef="MainI" unitRef="pure" decimals="0">6</in-capmkt:NumberOfAgendaOrBusinessToBeTransacted><in-capmkt:NameOfListedEntityOrSubsidiaryEnteringIntoTheTransaction contextRef="D_DetailofRPT1">Brooks Steriscience Limited</in-capmkt:NameOfListedEntityOrSubsidiaryEnteringIntoTheTransaction><in-capmkt:NameOfCounterParty contextRef="D_DetailofRPT1">BROOKS STERISCIENCE LIMITED</in-capmkt:NameOfCounterParty><in-capmkt:RelationshipOfTheCounterpartyWithTheListedEntityOrItsSubsidiary contextRef="D_DetailofRPT1">JOINT VENTURE</in-capmkt:RelationshipOfTheCounterpartyWithTheListedEntityOrItsSubsidiary><in-capmkt:TypeOfRelatedPartyTransaction contextRef="D_DetailofRPT1">Purchase of goods or services</in-capmkt:TypeOfRelatedPartyTransaction><in-capmkt:AmountOfRelatedPartyTransactionDuringTheReportingPeriod contextRef="D_DetailofRPT1" unitRef="INR" decimals="0">50000000</in-capmkt:AmountOfRelatedPartyTransactionDuringTheReportingPeriod><in-capmkt:DateOfStartOfTenure contextRef="D_DetailofRPT1">2026-04-01</in-capmkt:DateOfStartOfTenure><in-capmkt:DateOfEndOfTenure contextRef="D_DetailofRPT1">2027-03-31</in-capmkt:DateOfEndOfTenure><in-capmkt:NameOfListedEntityOrSubsidiaryEnteringIntoTheTransaction contextRef="D_DetailofRPT2">Brooks Steriscience Limited</in-capmkt:NameOfListedEntityOrSubsidiaryEnteringIntoTheTransaction><in-capmkt:NameOfCounterParty contextRef="D_DetailofRPT2">BROOKS STERISCIENCE LIMITED</in-capmkt:NameOfCounterParty><in-capmkt:RelationshipOfTheCounterpartyWithTheListedEntityOrItsSubsidiary contextRef="D_DetailofRPT2">JOINT VENTURE</in-capmkt:RelationshipOfTheCounterpartyWithTheListedEntityOrItsSubsidiary><in-capmkt:TypeOfRelatedPartyTransaction contextRef="D_DetailofRPT2">Purchase of goods or services</in-capmkt:TypeOfRelatedPartyTransaction><in-capmkt:AmountOfRelatedPartyTransactionDuringTheReportingPeriod contextRef="D_DetailofRPT2" unitRef="INR" decimals="0">50000000</in-capmkt:AmountOfRelatedPartyTransactionDuringTheReportingPeriod><in-capmkt:DateOfStartOfTenure contextRef="D_DetailofRPT2">2027-04-01</in-capmkt:DateOfStartOfTenure><in-capmkt:DateOfEndOfTenure contextRef="D_DetailofRPT2">2028-03-31</in-capmkt:DateOfEndOfTenure><in-capmkt:NameOfListedEntityOrSubsidiaryEnteringIntoTheTransaction contextRef="D_DetailofRPT3">Brooks Steriscience Limited</in-capmkt:NameOfListedEntityOrSubsidiaryEnteringIntoTheTransaction><in-capmkt:NameOfCounterParty contextRef="D_DetailofRPT3">BROOKS STERISCIENCE LIMITED</in-capmkt:NameOfCounterParty><in-capmkt:RelationshipOfTheCounterpartyWithTheListedEntityOrItsSubsidiary contextRef="D_DetailofRPT3">JOINT VENTURE</in-capmkt:RelationshipOfTheCounterpartyWithTheListedEntityOrItsSubsidiary><in-capmkt:TypeOfRelatedPartyTransaction contextRef="D_DetailofRPT3">Any other transaction</in-capmkt:TypeOfRelatedPartyTransaction><in-capmkt:DetailsOfOtherRelatedPartyTransaction contextRef="D_DetailofRPT3">Providing and availing job work services, Cross Charges for
shared services, commission/expenses incurred in respect of services availed/provided</in-capmkt:DetailsOfOtherRelatedPartyTransaction><in-capmkt:AmountOfRelatedPartyTransactionDuringTheReportingPeriod contextRef="D_DetailofRPT3" unitRef="INR" decimals="0">40000000</in-capmkt:AmountOfRelatedPartyTransactionDuringTheReportingPeriod><in-capmkt:DateOfStartOfTenure contextRef="D_DetailofRPT3">2028-04-01</in-capmkt:DateOfStartOfTenure><in-capmkt:DateOfEndOfTenure contextRef="D_DetailofRPT3">2029-03-31</in-capmkt:DateOfEndOfTenure><in-capmkt:TypeOfResolution contextRef="I_DetailofResolution1">Ordinary Resolution</in-capmkt:TypeOfResolution><in-capmkt:CategoryOfResolution contextRef="I_DetailofResolution1">Adoption of Financial Statements</in-capmkt:CategoryOfResolution><in-capmkt:BriefDetailsOfResolution contextRef="D_DetailofResolution1">To receive, consider and adopt the audited Standalone and Consolidated financial statements of the Company for the financial
year ended 31st March 2026 and the Report of directors and Auditors thereon</in-capmkt:BriefDetailsOfResolution><in-capmkt:TypeOfResolution contextRef="I_DetailofResolution2">Ordinary Resolution</in-capmkt:TypeOfResolution><in-capmkt:CategoryOfResolution contextRef="I_DetailofResolution2">Appointment/Re-appointment/Removal/Ratification/Retirement/Remuneration</in-capmkt:CategoryOfResolution><in-capmkt:SubCategoryOfResolution contextRef="I_DetailofResolution2">Retirement by rotation</in-capmkt:SubCategoryOfResolution><in-capmkt:BriefDetailsOfResolution contextRef="D_DetailofResolution2">To reappoint Mr. Jitendrapratap Rambahadur Singh (DIN: 09796568), who retires by rotation, and being eligible, offers himself
for reappointment.</in-capmkt:BriefDetailsOfResolution><in-capmkt:DesignationOfDesignatedPerson contextRef="I_DetailofResolution2">Executive Director</in-capmkt:DesignationOfDesignatedPerson><in-capmkt:NameOfDesignatedPerson contextRef="D_DetailofResolution2">Mr. Jitendrapratap Rambahadur Singh - Whole-Time director</in-capmkt:NameOfDesignatedPerson><in-capmkt:DirectorIdentificationNumberOfDirector contextRef="D_DetailofResolution2">09796568</in-capmkt:DirectorIdentificationNumberOfDirector><in-capmkt:DateOfStartOfTenure contextRef="D_DetailofResolution2">2022-11-23</in-capmkt:DateOfStartOfTenure><in-capmkt:DateOfEndOfTenure contextRef="D_DetailofResolution2">2027-11-22</in-capmkt:DateOfEndOfTenure><in-capmkt:TypeOfResolution contextRef="I_DetailofResolution3">Ordinary Resolution</in-capmkt:TypeOfResolution><in-capmkt:CategoryOfResolution contextRef="I_DetailofResolution3">Others</in-capmkt:CategoryOfResolution><in-capmkt:SubCategoryOfResolution contextRef="I_DetailofResolution3">Others</in-capmkt:SubCategoryOfResolution><in-capmkt:DetailsOfOtherSubCategoryOfResolution contextRef="D_DetailofResolution3">Remuneration of the Cost Auditors</in-capmkt:DetailsOfOtherSubCategoryOfResolution><in-capmkt:BriefDetailsOfResolution contextRef="D_DetailofResolution3">To ratify the remuneration of the Cost Auditors</in-capmkt:BriefDetailsOfResolution><in-capmkt:TypeOfResolution contextRef="I_DetailofResolution4">Ordinary Resolution</in-capmkt:TypeOfResolution><in-capmkt:CategoryOfResolution contextRef="I_DetailofResolution4">Related Party Transaction</in-capmkt:CategoryOfResolution><in-capmkt:BriefDetailsOfResolution contextRef="D_DetailofResolution4">Approval for Related Party Transactions</in-capmkt:BriefDetailsOfResolution><in-capmkt:TypeOfResolution contextRef="I_DetailofResolution5">Ordinary Resolution</in-capmkt:TypeOfResolution><in-capmkt:CategoryOfResolution contextRef="I_DetailofResolution5">Others</in-capmkt:CategoryOfResolution><in-capmkt:SubCategoryOfResolution contextRef="I_DetailofResolution5">Others</in-capmkt:SubCategoryOfResolution><in-capmkt:DetailsOfOtherSubCategoryOfResolution contextRef="D_DetailofResolution5">Remuneration of President- Stratery</in-capmkt:DetailsOfOtherSubCategoryOfResolution><in-capmkt:BriefDetailsOfResolution contextRef="D_DetailofResolution5">Approval for payment of remuneration to Mr. Atul Ranchal, President – Strategy, under Section 188(1)(f) of the Companies
Act, 2013</in-capmkt:BriefDetailsOfResolution><in-capmkt:TypeOfResolution contextRef="I_DetailofResolution6">Ordinary Resolution</in-capmkt:TypeOfResolution><in-capmkt:CategoryOfResolution contextRef="I_DetailofResolution6">Others</in-capmkt:CategoryOfResolution><in-capmkt:SubCategoryOfResolution contextRef="I_DetailofResolution6">Others</in-capmkt:SubCategoryOfResolution><in-capmkt:DetailsOfOtherSubCategoryOfResolution contextRef="D_DetailofResolution6">Remuneration of President - Trading</in-capmkt:DetailsOfOtherSubCategoryOfResolution><in-capmkt:BriefDetailsOfResolution contextRef="D_DetailofResolution6">Approval for payment of remuneration to Mr. Rajesh Mahajan, President – Trading, under Section 188(1)(f) of the Companies
Act, 2013.</in-capmkt:BriefDetailsOfResolution></xbrli:xbrl>
