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<xbrli:xbrl xmlns:in-capmkt="http://www.sebi.gov.in/xbrl/2025-11-30/in-capmkt" xmlns:in-capmkt-ent="http://www.sebi.gov.in/xbrl/Changes_In_Management/2025-11-30/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/2025-11-30/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-2025-11-30.xsd"/><xbrli:context id="MainD"><xbrli:entity><xbrli:identifier scheme="https://www.sebi.gov.in/in-capmkt/NSESymbol">NUCLEUS</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2026-09-21</xbrli:startDate><xbrli:endDate>2026-09-21</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="MainI"><xbrli:entity><xbrli:identifier scheme="https://www.sebi.gov.in/in-capmkt/NSESymbol">NUCLEUS</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:instant>2026-09-21</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="I_ChangeInManagement1"><xbrli:entity><xbrli:identifier scheme="https://www.sebi.gov.in/in-capmkt/NSESymbol">NUCLEUS</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:instant>2026-09-21</xbrli:instant></xbrli:period><xbrli:scenario><xbrldi:typedMember dimension="in-capmkt:ChangeInManagementAxis"><in-capmkt:ChangeInManagementDomain>ChangeInManagementDomain1</in-capmkt:ChangeInManagementDomain></xbrldi:typedMember></xbrli:scenario></xbrli:context><xbrli:context id="D_ChangeInManagement1"><xbrli:entity><xbrli:identifier scheme="https://www.sebi.gov.in/in-capmkt/NSESymbol">NUCLEUS</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2026-09-21</xbrli:startDate><xbrli:endDate>2026-09-21</xbrli:endDate></xbrli:period><xbrli:scenario><xbrldi:typedMember dimension="in-capmkt:ChangeInManagementAxis"><in-capmkt:ChangeInManagementDomain>ChangeInManagementDomain1</in-capmkt:ChangeInManagementDomain></xbrldi:typedMember></xbrli:scenario></xbrli:context><xbrli:unit id="pure"><xbrli:measure>xbrli:pure</xbrli:measure></xbrli:unit><in-capmkt:NSESymbol contextRef="MainI">NUCLEUS</in-capmkt:NSESymbol><in-capmkt:NameOfTheCompany contextRef="MainI">NUCLEUS SOFTWARE EXPORTS LIMITED</in-capmkt:NameOfTheCompany><in-capmkt:ScripCode contextRef="MainI">531209</in-capmkt:ScripCode><in-capmkt:MSEISymbol contextRef="MainI">NOTLISTED</in-capmkt:MSEISymbol><in-capmkt:ISIN contextRef="MainI">INE096B01018</in-capmkt:ISIN><in-capmkt:WhetherDisclosureFiledForListedEntity contextRef="MainD">true</in-capmkt:WhetherDisclosureFiledForListedEntity><in-capmkt:RelationshipWithTheListedEntity contextRef="MainD">Listed Entity (self)</in-capmkt:RelationshipWithTheListedEntity><in-capmkt:WhetherEventOrInformationIsAnOutcomeOfBoardMeeting contextRef="MainD">false</in-capmkt:WhetherEventOrInformationIsAnOutcomeOfBoardMeeting><in-capmkt:DateOfOccurrenceOfEventOrInformation contextRef="MainD">2026-09-21</in-capmkt:DateOfOccurrenceOfEventOrInformation><in-capmkt:TimeOfOccurrenceOfEventOrInformation contextRef="MainD">17:44:00</in-capmkt:TimeOfOccurrenceOfEventOrInformation><in-capmkt:NumberOfPersonsOrEntitiesForWhomChangeIsBeingReported contextRef="MainI" unitRef="pure" decimals="0">1</in-capmkt:NumberOfPersonsOrEntitiesForWhomChangeIsBeingReported><in-capmkt:DateOfReport contextRef="MainI">2026-09-21</in-capmkt:DateOfReport><in-capmkt:TypeOfChange contextRef="D_ChangeInManagement1">Appointment</in-capmkt:TypeOfChange><in-capmkt:CategoryForChange contextRef="D_ChangeInManagement1">Senior Management Personnel</in-capmkt:CategoryForChange><in-capmkt:DesignationOfDesignatedPerson contextRef="D_ChangeInManagement1">Chief Marketing Officer</in-capmkt:DesignationOfDesignatedPerson><in-capmkt:SalutationOfDesignatedPerson contextRef="D_ChangeInManagement1">Mr.</in-capmkt:SalutationOfDesignatedPerson><in-capmkt:NameOfDesignatedPerson contextRef="I_ChangeInManagement1">Sudhanshu Tripathi</in-capmkt:NameOfDesignatedPerson><in-capmkt:EffectiveDateOfReasonOfChange contextRef="I_ChangeInManagement1">2026-09-21</in-capmkt:EffectiveDateOfReasonOfChange><in-capmkt:BriefProfile contextRef="D_ChangeInManagement1">Mr. Sudhanshu Tripathi is a seasoned business leader with over two decades of experience building technology-driven businesses. He has scaled brands across domestic as well as international markets. Most recently, he was Chief Marketing Officer and Head of ESG at Quick Heal Technologies Limited, where he led the brand and growth mandates for both the consumer and enterprise businesses, while owning the digital business P&amp;L. His core strengths include business strategy, GTM, demand generation, category creation, inside sales, global partner-led ecosystems, and ESG. He has also worked extensively on branding, corporate reputation and policy formulation. This work involved deep engagement across the ecosystem, including regulators, governments and critical infrastructure organisations. A published author whose case study has featured in Harvard Business Review, he is an active speaker and has consistently been named among India's top marketing leaders by multiple forums. He holds a B.E. in Electrical Engineering from Nagpur University. 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