<?xml version="1.0" encoding="UTF-8"?>
<!--REG30 V1.0 (16-10-2025)-->
<xbrli:xbrl xmlns:in-capmkt="http://www.sebi.gov.in/xbrl/2025-08-31/in-capmkt" xmlns:in-capmkt-ent="http://www.sebi.gov.in/xbrl/Regulation_30_Restructuring/2025-08-31/in-capmkt/in-capmkt-ent" xmlns:in-capmkt-roles="http://www.sebi.gov.in/xbrl/Regulation_30_Restructuring/2025-08-31/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-2025-08-31.xsd"/><xbrli:context id="OneI"><xbrli:entity><xbrli:identifier scheme="http://www.sebi.gov.in/in-capmkt/NSESymbol">MITCON</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:instant>2026-07-17</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="OneD"><xbrli:entity><xbrli:identifier scheme="http://www.sebi.gov.in/in-capmkt/NSESymbol">MITCON</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2026-07-17</xbrli:startDate><xbrli:endDate>2026-07-17</xbrli:endDate></xbrli:period></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:ScripCode contextRef="OneI">000000</in-capmkt:ScripCode><in-capmkt:NameOfTheCompany contextRef="OneI">MITCON CONSULTANCY &amp; ENGINEERING SERVICES LIMITED</in-capmkt:NameOfTheCompany><in-capmkt:NSESymbol contextRef="OneI">MITCON</in-capmkt:NSESymbol><in-capmkt:MSEISymbol contextRef="OneI">NOTLISTED</in-capmkt:MSEISymbol><in-capmkt:ISIN contextRef="OneI">INE828O01033</in-capmkt:ISIN><in-capmkt:TypeOfAnnouncementPertainingToRegulation30Restructuring contextRef="OneD">New</in-capmkt:TypeOfAnnouncementPertainingToRegulation30Restructuring><in-capmkt:TypeOfEventOfAnnouncementPertainingToRegulation30Restructuring contextRef="OneD">Acquisition (including agreement to acquire)</in-capmkt:TypeOfEventOfAnnouncementPertainingToRegulation30Restructuring><in-capmkt:WhetherEventOrInformationDisclosedIsAnOutcomeOfBoardMeeting contextRef="OneD">false</in-capmkt:WhetherEventOrInformationDisclosedIsAnOutcomeOfBoardMeeting><in-capmkt:DateOfOccurrenceOfEvent contextRef="OneI">2026-07-17</in-capmkt:DateOfOccurrenceOfEvent><in-capmkt:TimeOfOccurrenceOfEvent contextRef="OneD">11:00:00</in-capmkt:TimeOfOccurrenceOfEvent><in-capmkt:DateOfReport contextRef="OneI">2026-07-17</in-capmkt:DateOfReport><in-capmkt:NameOfAcquirer contextRef="OneI">MITCON Sun Power Limited</in-capmkt:NameOfAcquirer><in-capmkt:RelationshipOfAcquirerWithTheListedEntity contextRef="OneD">Subsidiary</in-capmkt:RelationshipOfAcquirerWithTheListedEntity><in-capmkt:NameOfTheTargetEntity contextRef="OneI">MITCON Power Trading Limited</in-capmkt:NameOfTheTargetEntity><in-capmkt:TurnoverOfTargetEntity contextRef="OneD" unitRef="INR" decimals="-7">0</in-capmkt:TurnoverOfTargetEntity><in-capmkt:ProfitAfterTaxOfTargetEntity contextRef="OneD" unitRef="INR" decimals="-7">0</in-capmkt:ProfitAfterTaxOfTargetEntity><in-capmkt:NetWorthOfTargetEntity contextRef="OneD" unitRef="INR" decimals="-5">100000</in-capmkt:NetWorthOfTargetEntity><in-capmkt:OtherFinancialParameterOfTargetEntity contextRef="OneI">0</in-capmkt:OtherFinancialParameterOfTargetEntity><in-capmkt:WhetherTheAcquisitionWouldFallWithinRelatedPartyTransactions contextRef="OneD">false</in-capmkt:WhetherTheAcquisitionWouldFallWithinRelatedPartyTransactions><in-capmkt:WhetherThePromoterOrPromoterGroupOrGroupCompaniesIncludingAssociateOrHoldingOrSubsidiaryOrDirectorOrKMPOrSMPAndItsRelativesHaveAnyInterestInTheEntityBeingAcquired contextRef="OneD">true</in-capmkt:WhetherThePromoterOrPromoterGroupOrGroupCompaniesIncludingAssociateOrHoldingOrSubsidiaryOrDirectorOrKMPOrSMPAndItsRelativesHaveAnyInterestInTheEntityBeingAcquired><in-capmkt:NatureOfInterestAndDetailsThereofForAcquisitionEvent contextRef="OneI">MITCON Sun Power Limited, wholly owned subsidiary of MITCON Consultancy &amp; Engineering Services Limited (Ultimate Holding Company) has incorporated a wholly owned subsidiary i.e “MITCON Power Trading Limited”. SMP is Director in MITCON Power Trading Limited.</in-capmkt:NatureOfInterestAndDetailsThereofForAcquisitionEvent><in-capmkt:WhetherAcquisitionEventIsDoneAtArmsLength contextRef="OneD">true</in-capmkt:WhetherAcquisitionEventIsDoneAtArmsLength><in-capmkt:IndustryToWhichTheEntityBeingAcquiredBelongs contextRef="OneI">Power Trading</in-capmkt:IndustryToWhichTheEntityBeingAcquiredBelongs><in-capmkt:ObjectsAndImpactOfAcquisitionIncludingButNotLimitedToDisclosureOfReasonsForAcquisitionOfTargetEntityIfItsBusinessIsOutsideTheMainLineOfBusinessOfTheListedEntity contextRef="OneI">With an intent to expand business in the field of power trading. It will result in growth of Ultimate Holding Company.</in-capmkt:ObjectsAndImpactOfAcquisitionIncludingButNotLimitedToDisclosureOfReasonsForAcquisitionOfTargetEntityIfItsBusinessIsOutsideTheMainLineOfBusinessOfTheListedEntity><in-capmkt:WhetherAnyGovernmentalOrRegulatoryApprovalsRequiredForTheAcquisition contextRef="OneD">NA</in-capmkt:WhetherAnyGovernmentalOrRegulatoryApprovalsRequiredForTheAcquisition><in-capmkt:WhetherTheAcquisitionTransactionWillBeInTranches contextRef="OneD">false</in-capmkt:WhetherTheAcquisitionTransactionWillBeInTranches><in-capmkt:IndicativeTimePeriodForCompletionOfTheAcquisition contextRef="OneI">NA</in-capmkt:IndicativeTimePeriodForCompletionOfTheAcquisition><in-capmkt:NatureOfConsiderationForAcquisitionEvent contextRef="OneD">Cash</in-capmkt:NatureOfConsiderationForAcquisitionEvent><in-capmkt:AmountOfCashConsiderationForAcquisitionEvent contextRef="OneD" unitRef="INR" decimals="-5">100000</in-capmkt:AmountOfCashConsiderationForAcquisitionEvent><in-capmkt:DetailsOfConsiderationForAcquisitionEvent contextRef="OneI">Subscription of 10,000 Equity shares at par value of Rs. 10 each aggregating to Rs. 1,00,000 by  MITCON Sun Power Limited along with its Nominees</in-capmkt:DetailsOfConsiderationForAcquisitionEvent><in-capmkt:CostOfAcquisitionOrThePriceAtWhichTheSharesAreAcquired contextRef="OneD" unitRef="INR" decimals="-5">100000</in-capmkt:CostOfAcquisitionOrThePriceAtWhichTheSharesAreAcquired><in-capmkt:ExistingPercentageOfShareholdingHeldByAcquirer contextRef="OneI" unitRef="pure" decimals="INF">0</in-capmkt:ExistingPercentageOfShareholdingHeldByAcquirer><in-capmkt:PercentageOfControlAcquired contextRef="OneI" unitRef="pure" decimals="INF">1</in-capmkt:PercentageOfControlAcquired><in-capmkt:PercentageOfAdditionalSharesAcquiredIfExistingHoldingPersists contextRef="OneI" unitRef="pure" decimals="INF">1</in-capmkt:PercentageOfAdditionalSharesAcquiredIfExistingHoldingPersists><in-capmkt:BriefBackgroundAboutTheEntityAcquiredInTermsOfProductsLineOfBusinessAcquired contextRef="OneI">The Entity has been incorporated as a Wholly Owned Subsidiary of MITCON Sun Power Limited which itself is a wholly owned subsidiary of the listed entity, which makes the Company a step-down subsidiary of MITCON Consultancy &amp; Engineering Services Limited. The entity was incorporated on June 19, 2026 in India and the Company will be engaged in the field of power trading. Turnover and last 3 year details are not applicable as the entity is incorporated on June 19, 2026.</in-capmkt:BriefBackgroundAboutTheEntityAcquiredInTermsOfProductsLineOfBusinessAcquired><in-capmkt:DateOfIncorporationForAcquisitionEvent contextRef="OneI">2026-06-19</in-capmkt:DateOfIncorporationForAcquisitionEvent><in-capmkt:CountryInWhichTheAcquiredEntityHasPresence contextRef="OneI">India</in-capmkt:CountryInWhichTheAcquiredEntityHasPresence></xbrli:xbrl>
