<?xml version="1.0" encoding="UTF-8" standalone="no"?><!--ICGIG--><xbrli:xbrl xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:in-capmkt="http://www.sebi.gov.in/xbrl/2024-12-31/in-capmkt" xmlns:in-capmkt-ent="http://www.sebi.gov.in/xbrl/IntegratedGovernance/2024-12-31/in-capmkt/in-capmkt-ent" xmlns:in-capmkt-roles="http://www.sebi.gov.in/xbrl/IntegratedGovernance/2024-12-31/in-capmkt-roles" xmlns:in-capmkt-types="http://www.sebi.gov.in/xbrl/2024-12-31/in-capmkt-types" xmlns:iso4217="http://www.xbrl.org/2003/iso4217" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:negated="http://www.xbrl.org/2009/role/negated" xmlns:net="http://www.xbrl.org/2009/role/net" xmlns:nonnum="http://www.xbrl.org/dtr/type/non-numeric" xmlns:num="http://www.xbrl.org/dtr/type/numeric" xmlns:xbrldi="http://xbrl.org/2006/xbrldi" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xl="http://www.xbrl.org/2003/XLink" xmlns:xlink="http://www.w3.org/1999/xlink"><link:schemaRef xlink:href="in-capmkt-ent-2024-12-31.xsd" xlink:type="simple"/><xbrli:context id="MainD"><xbrli:entity><xbrli:identifier scheme="http://www.bseindia.com/in-capmkt/Symbol">POLYSIL</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2024-10-01</xbrli:startDate><xbrli:endDate>2024-12-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="MainI"><xbrli:entity><xbrli:identifier scheme="http://www.bseindia.com/in-capmkt/Symbol">POLYSIL</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:instant>2024-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="PY_I"><xbrli:entity><xbrli:identifier scheme="http://www.bseindia.com/in-capmkt/Symbol">POLYSIL</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:instant>2024-09-30</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="I_ImpositionOfFineOrPenalty1"><xbrli:entity><xbrli:identifier scheme="http://www.bseindia.com/in-capmkt/Symbol">POLYSIL</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:instant>2024-12-31</xbrli:instant></xbrli:period><xbrli:scenario><xbrldi:typedMember dimension="in-capmkt:ImpositionOfFineOrPenaltyAxis"><in-capmkt:ImpositionOfFineOrPenaltyDomain>ImpositionOfFineOrPenaltyDomain1</in-capmkt:ImpositionOfFineOrPenaltyDomain></xbrldi:typedMember></xbrli:scenario></xbrli:context><xbrli:unit id="pure"><xbrli:measure>xbrli:pure</xbrli:measure></xbrli:unit><in-capmkt:ScripCode contextRef="MainI">000000</in-capmkt:ScripCode><in-capmkt:Symbol contextRef="MainI">POLYSIL</in-capmkt:Symbol><in-capmkt:MSEISymbol contextRef="MainI">NOTLISTED</in-capmkt:MSEISymbol><in-capmkt:ISIN contextRef="MainI">INE517M01028</in-capmkt:ISIN><in-capmkt:NameOfTheCompany contextRef="MainI">Polysil Irrigation Systems Limited</in-capmkt:NameOfTheCompany><in-capmkt:DateOfStartOfFinancialYear contextRef="MainI">2024-04-01</in-capmkt:DateOfStartOfFinancialYear><in-capmkt:DateOfEndOfFinancialYear contextRef="MainI">2025-03-31</in-capmkt:DateOfEndOfFinancialYear><in-capmkt:ReportingQuarter contextRef="MainI">Quarterly</in-capmkt:ReportingQuarter><in-capmkt:DateOfEndOfReportingPeriod contextRef="MainI">2024-12-31</in-capmkt:DateOfEndOfReportingPeriod><in-capmkt:TypeOfCompany contextRef="MainD">SME</in-capmkt:TypeOfCompany><in-capmkt:WhetherPartAOfAnnexureIOfTheSEBICircularDated31December2024RelatedToComplianceReportOnCorporateGovernanceIsApplicableToTheEntity contextRef="MainD">false</in-capmkt:WhetherPartAOfAnnexureIOfTheSEBICircularDated31December2024RelatedToComplianceReportOnCorporateGovernanceIsApplicableToTheEntity><in-capmkt:ReasonForPartAOfAnnexureIOfTheSEBICircularDated31December2024RelatedToComplianceReportOnCorporateGovernanceIsNotApplicableToTheEntity contextRef="MainD">Company is Listed on EMERGE Platform of NSE. Thus, Provision relating to Corporate Governance is Not Applicable to the Company.</in-capmkt:ReasonForPartAOfAnnexureIOfTheSEBICircularDated31December2024RelatedToComplianceReportOnCorporateGovernanceIsNotApplicableToTheEntity><in-capmkt:WhetherPartBOfAnnexureIOfTheSEBICircularDated31December2024RelatedToInvestorGrievanceRedressalReportIsApplicableToTheEntity contextRef="MainD">true</in-capmkt:WhetherPartBOfAnnexureIOfTheSEBICircularDated31December2024RelatedToInvestorGrievanceRedressalReportIsApplicableToTheEntity><in-capmkt:WhetherPartCOfAnnexureIOfTheSEBICircularDated31December2024RelatedToDisclosureOfAcquisitionOfSharesOrVotingRightsInUnlistedCompaniesIsApplicableToTheEntity contextRef="MainD">false</in-capmkt:WhetherPartCOfAnnexureIOfTheSEBICircularDated31December2024RelatedToDisclosureOfAcquisitionOfSharesOrVotingRightsInUnlistedCompaniesIsApplicableToTheEntity><in-capmkt:ReasonForPartCOfAnnexureIOfTheSEBICircularDated31December2024RelatedToDisclosureOfAcquisitionOfSharesOrVotingRightsInUnlistedCompaniesIsNotApplicableToTheEntity contextRef="MainD">Company has not acquired any Shares or Voting Rights in Unlisted Company during the Quarter ended December 31, 2024. Thus, Not Applicable to the Company</in-capmkt:ReasonForPartCOfAnnexureIOfTheSEBICircularDated31December2024RelatedToDisclosureOfAcquisitionOfSharesOrVotingRightsInUnlistedCompaniesIsNotApplicableToTheEntity><in-capmkt:WhetherPartDOfAnnexureIOfTheSEBICircularDated31December2024RelatedToDisclosureOfImpositionOfFineOrPenaltyIsApplicableToTheEntity contextRef="MainD">true</in-capmkt:WhetherPartDOfAnnexureIOfTheSEBICircularDated31December2024RelatedToDisclosureOfImpositionOfFineOrPenaltyIsApplicableToTheEntity><in-capmkt:WhetherPartEOfAnnexureIOfTheSEBICircularDated31December2024RelatedToDisclosureOfUpdatesToOngoingTaxLitigationsOrDisputesIsApplicableToTheEntity contextRef="MainD">false</in-capmkt:WhetherPartEOfAnnexureIOfTheSEBICircularDated31December2024RelatedToDisclosureOfUpdatesToOngoingTaxLitigationsOrDisputesIsApplicableToTheEntity><in-capmkt:ReasonForPartEOfAnnexureIOfTheSEBICircularDated31December2024RelatedToDisclosureOfUpdatesToOngoingTaxLitigationsOrDisputesIsNotApplicableToTheEntity contextRef="MainD">There is no any Ongoing Tax Litigation or Dispute during the Quarter ended December 31, 2024. Hence, not applicable to the company.</in-capmkt:ReasonForPartEOfAnnexureIOfTheSEBICircularDated31December2024RelatedToDisclosureOfUpdatesToOngoingTaxLitigationsOrDisputesIsNotApplicableToTheEntity><in-capmkt:IsSCORESIDAvailable contextRef="MainI">true</in-capmkt:IsSCORESIDAvailable><in-capmkt:SCORESRegistrationID contextRef="MainI">comp00915</in-capmkt:SCORESRegistrationID><in-capmkt:TypeOfSubmission contextRef="MainI">Original</in-capmkt:TypeOfSubmission><in-capmkt:NoOfInvestorComplaints contextRef="PY_I" decimals="0" unitRef="pure">0</in-capmkt:NoOfInvestorComplaints><in-capmkt:NoOfInvestorComplaintsReceivedDuringThePeriod contextRef="MainD" decimals="0" unitRef="pure">0</in-capmkt:NoOfInvestorComplaintsReceivedDuringThePeriod><in-capmkt:NoOfInvestorComplaintsDisposedOffDuringThePeriod contextRef="MainD" decimals="0" unitRef="pure">0</in-capmkt:NoOfInvestorComplaintsDisposedOffDuringThePeriod><in-capmkt:NoOfInvestorComplaints contextRef="MainI" decimals="0" unitRef="pure">0</in-capmkt:NoOfInvestorComplaints><in-capmkt:NoOfInvestorComplaintsDuringThePeriod contextRef="MainD" decimals="0" unitRef="pure">0</in-capmkt:NoOfInvestorComplaintsDuringThePeriod><in-capmkt:NameOfTheAuthority contextRef="I_ImpositionOfFineOrPenalty1">National Stock Exchange of India Limited</in-capmkt:NameOfTheAuthority><in-capmkt:NatureAndDetailsOfTheActionTakenOrOrderPassed contextRef="I_ImpositionOfFineOrPenalty1">Notice issued by the NSE Ref. No. NSE/SOP/RBF/1517 dated December 30, 2024 for late filing of Financial Results for the half-year ended September 30, 2024.

The Company paid the fine of ₹ 85000 plus GST @18% to the NSE for delay in filing of Financial Results for the half-year ended September 30, 2024.</in-capmkt:NatureAndDetailsOfTheActionTakenOrOrderPassed><in-capmkt:DateOfReceiptOfDirectionOrOrderIncludingAnyAdInterimOrInterimOrdersOrAnyOtherCommunicationFromTheAuthority contextRef="I_ImpositionOfFineOrPenalty1">2024-12-30</in-capmkt:DateOfReceiptOfDirectionOrOrderIncludingAnyAdInterimOrInterimOrdersOrAnyOtherCommunicationFromTheAuthority><in-capmkt:DetailsOfTheViolationOrContraventionCommittedOrAllegedToBeCommitted contextRef="I_ImpositionOfFineOrPenalty1">17 days delay in compliance of Regulation 33 for the half-year ended September 30, 2024</in-capmkt:DetailsOfTheViolationOrContraventionCommittedOrAllegedToBeCommitted><in-capmkt:ImpactOnFinancialOrOperationOrOtherActivitiesOfTheListedEntityQuantifiableInMonetaryTermsToTheExtentPossible contextRef="I_ImpositionOfFineOrPenalty1">There was 17 days' delay in submission of the Financial Results to the NSE for the half-year ended September 30, 2024 and the Company paid the required fine to the NSE.</in-capmkt:ImpactOnFinancialOrOperationOrOtherActivitiesOfTheListedEntityQuantifiableInMonetaryTermsToTheExtentPossible></xbrli:xbrl>