<?xml version="1.0" encoding="UTF-8"?>
<!--REG30PARAB V1.0 (01-06-2026)-->
<xbrli:xbrl xmlns:in-capmkt="http://www.sebi.gov.in/xbrl/2026-04-30/in-capmkt" xmlns:in-capmkt-ent="http://www.sebi.gov.in/xbrl/Regulation_30_Para_B_Of_Part_A_Of_Schedule_III/2026-04-30/in-capmkt/in-capmkt-ent" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:nonnum="http://www.xbrl.org/dtr/type/non-numeric" xmlns:in-capmkt-types="http://www.sebi.gov.in/xbrl/2026-04-30/in-capmkt-types" 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.w3.org/1999/xlink"><link:schemaRef xlink:type="simple" xlink:href="in-capmkt-ent-2026-04-30.xsd"/><xbrli:context id="MainI"><xbrli:entity><xbrli:identifier scheme="http://www.sebi.gov.in/in-capmkt/NSESymbol">KONSTELEC</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:instant>2026-10-26</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="MainD"><xbrli:entity><xbrli:identifier scheme="https://www.sebi.gov.in/in-capmkt/NSESymbol">KONSTELEC</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2026-10-26</xbrli:startDate><xbrli:endDate>2026-10-26</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="I_ClosureOfOperationsOfAnyUnitOrDivisionOrSubsidiary"><xbrli:entity><xbrli:identifier scheme="http://www.sebi.gov.in/in-capmkt/NSESymbol">KONSTELEC</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:instant>2026-10-26</xbrli:instant></xbrli:period><xbrli:scenario><xbrldi:explicitMember dimension="in-capmkt:SubTypeOfEventAsPerRegulation30ParaBOfPartAOfScheduleIIIAxis">in-capmkt:ClosureOfOperationsOfAnyUnitOrDivisionOrSubsidiaryMember</xbrldi:explicitMember></xbrli:scenario></xbrli:context><xbrli:unit id="pure"><xbrli:measure>xbrli:pure</xbrli:measure></xbrli:unit><xbrli:unit id="INR"><xbrli:measure>iso4217:INR</xbrli:measure></xbrli:unit><in-capmkt:NSESymbol contextRef="MainI">KONSTELEC</in-capmkt:NSESymbol><in-capmkt:NameOfTheCompany contextRef="MainI">KONSTELEC ENGINEERS LIMITED</in-capmkt:NameOfTheCompany><in-capmkt:ScripCode contextRef="MainI">000000</in-capmkt:ScripCode><in-capmkt:MSEISymbol contextRef="MainI">NOTLISTED</in-capmkt:MSEISymbol><in-capmkt:ISIN contextRef="MainI">INE0QEI01011</in-capmkt:ISIN><in-capmkt:TypeOfEventAsPerRegulation30ParaBOfPartAOfScheduleIII contextRef="MainI">Arrangement/Adoption of new line/Closure of operations (Sub-para 2-Para B)</in-capmkt:TypeOfEventAsPerRegulation30ParaBOfPartAOfScheduleIII><in-capmkt:SubTypeOfEventAsPerRegulation30ParaBOfPartAOfScheduleIII contextRef="I_ClosureOfOperationsOfAnyUnitOrDivisionOrSubsidiary">Closure of operations of any unit, division or subsidiary (in entirety or in piecemeal)</in-capmkt:SubTypeOfEventAsPerRegulation30ParaBOfPartAOfScheduleIII><in-capmkt:TypeOfAnnouncementAsPerRegulation30ParaBOfPartAOfScheduleIII contextRef="MainI">New</in-capmkt:TypeOfAnnouncementAsPerRegulation30ParaBOfPartAOfScheduleIII><in-capmkt:WhetherEventOrInformationDisclosedIsAnOutcomeOfTheBoardMeeting contextRef="MainI">false</in-capmkt:WhetherEventOrInformationDisclosedIsAnOutcomeOfTheBoardMeeting><in-capmkt:DateOfOccurrenceOfEventOrInformation contextRef="MainI">2026-10-26</in-capmkt:DateOfOccurrenceOfEventOrInformation><in-capmkt:TimeOfOccurrenceOfEventOrInformation contextRef="MainI">15:22:00</in-capmkt:TimeOfOccurrenceOfEventOrInformation><in-capmkt:DateOfReport contextRef="MainI">2026-10-26</in-capmkt:DateOfReport><in-capmkt:DateOfBindingAgreementEnteredForSaleOfUnitOrDivisionOrSubsidiaryOfTheListedEntity contextRef="MainI">2025-02-17</in-capmkt:DateOfBindingAgreementEnteredForSaleOfUnitOrDivisionOrSubsidiaryOfTheListedEntity><in-capmkt:DetailsOfUnitOrDivisionOrSubsidiaryOfTheListedEntity contextRef="MainI">Joint Venture</in-capmkt:DetailsOfUnitOrDivisionOrSubsidiaryOfTheListedEntity><in-capmkt:PreviousYearTurnoverOfUnitOrDivisionOrSubsidiaryOfTheListedEntity contextRef="MainD" unitRef="INR" decimals="0">0</in-capmkt:PreviousYearTurnoverOfUnitOrDivisionOrSubsidiaryOfTheListedEntity><in-capmkt:PreviousYearPercentageOfTurnoverOfUnitOrDivisionOrSubsidiaryOfTheListedEntity contextRef="MainD" unitRef="pure" decimals="INF">0</in-capmkt:PreviousYearPercentageOfTurnoverOfUnitOrDivisionOrSubsidiaryOfTheListedEntity><in-capmkt:PreviousYearRevenueOfUnitOrDivisionOrSubsidiaryOfTheListedEntity contextRef="MainD" unitRef="INR" decimals="0">0</in-capmkt:PreviousYearRevenueOfUnitOrDivisionOrSubsidiaryOfTheListedEntity><in-capmkt:PreviousYearPercentageOfRevenueOfUnitOrDivisionOrSubsidiaryOfTheListedEntity contextRef="MainD" unitRef="pure" decimals="INF">0</in-capmkt:PreviousYearPercentageOfRevenueOfUnitOrDivisionOrSubsidiaryOfTheListedEntity><in-capmkt:PreviousYearIncomeOfUnitOrDivisionOrSubsidiaryOfTheListedEntity contextRef="MainD" unitRef="INR" decimals="0">0</in-capmkt:PreviousYearIncomeOfUnitOrDivisionOrSubsidiaryOfTheListedEntity><in-capmkt:PreviousYearPercentageOfIncomeOfUnitOrDivisionOrSubsidiaryOfTheListedEntity contextRef="MainD" unitRef="pure" decimals="INF">0</in-capmkt:PreviousYearPercentageOfIncomeOfUnitOrDivisionOrSubsidiaryOfTheListedEntity><in-capmkt:PreviousYearNetWorthOfUnitOrDivisionOrSubsidiaryOfTheListedEntity contextRef="MainD" unitRef="INR" decimals="0">0</in-capmkt:PreviousYearNetWorthOfUnitOrDivisionOrSubsidiaryOfTheListedEntity><in-capmkt:PreviousYearPercentageOfNetWorthOfUnitOrDivisionOrSubsidiaryOfTheListedEntity contextRef="MainD" unitRef="pure" decimals="INF">0</in-capmkt:PreviousYearPercentageOfNetWorthOfUnitOrDivisionOrSubsidiaryOfTheListedEntity><in-capmkt:DateOfClosureOfOperations contextRef="MainI">2026-10-22</in-capmkt:DateOfClosureOfOperations><in-capmkt:ReasonForClosureOfOperations contextRef="MainI">Degat Alebtikar Company Ltd., bearing Unified National Number 7049029049, has been recorded as “Deleted”
in its Commercial Registration Certificate. In view of the geopolitical developments in the Middle East and the resulting business and operational considerations, the establishment initiated the voluntary cancellation of its
investment registration. The Ministry of Investment, Kingdom of Saudi Arabia, subsequently issued a decision cancelling Investment Registration No. 122064601304791 following completion of the applicable government formalities</in-capmkt:ReasonForClosureOfOperations></xbrli:xbrl>
