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<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">539006</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:instant>2026-09-08</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="D_DetailofResolution1"><xbrli:entity><xbrli:identifier scheme="https://www.sebi.gov.in/in-capmkt/ScripCode">539006</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2026-09-08</xbrli:startDate><xbrli:endDate>2026-09-08</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">539006</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:instant>2026-09-08</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">539006</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2026-09-08</xbrli:startDate><xbrli:endDate>2026-09-08</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">539006</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:instant>2026-09-08</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">539006</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2026-09-08</xbrli:startDate><xbrli:endDate>2026-09-08</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">539006</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:instant>2026-09-08</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:unit id="pure"><xbrli:measure>xbrli:pure</xbrli:measure></xbrli:unit><in-capmkt:NameOfTheCompany contextRef="MainI">PTC INDUSTRIES LIMITED</in-capmkt:NameOfTheCompany><in-capmkt:NSESymbol contextRef="MainI">PTCIL</in-capmkt:NSESymbol><in-capmkt:TypeOfAnnouncement contextRef="MainI">New</in-capmkt:TypeOfAnnouncement><in-capmkt:DateOfOccurrenceOfEvent contextRef="MainI">2026-09-08</in-capmkt:DateOfOccurrenceOfEvent><in-capmkt:TimeOfOccurrenceOfEvent contextRef="MainI">07:00:00</in-capmkt:TimeOfOccurrenceOfEvent><in-capmkt:DateOfReport contextRef="MainI">2026-09-08</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">63</in-capmkt:NumberOfShareholdersMeeting><in-capmkt:DayOfShareholdersMeeting contextRef="MainI">Wednesday</in-capmkt:DayOfShareholdersMeeting><in-capmkt:DateOfShareholdersMeeting contextRef="MainI">2026-09-30</in-capmkt:DateOfShareholdersMeeting><in-capmkt:ShareholdersMeetingCommencementTime contextRef="MainI">15:00:00</in-capmkt:ShareholdersMeetingCommencementTime><in-capmkt:PlaceOfShareholdersMeeting contextRef="MainI">Lucknow</in-capmkt:PlaceOfShareholdersMeeting><in-capmkt:NumberOfAgendaOrBusinessToBeTransacted contextRef="MainI" unitRef="pure" decimals="0">3</in-capmkt:NumberOfAgendaOrBusinessToBeTransacted><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 (a) the audited standalone
financial statements of the Company for the financial
year ended March 31, 2026 and the reports of the Board
of Directors’ and Auditors’ thereon; and (b) the audited
consolidated financial statements of the Company for
the financial year ended March 31, 2026</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 re-appoint Ms. Smita Agarwal as a director liable to retire by rotation</in-capmkt:BriefDetailsOfResolution><in-capmkt:DesignationOfDesignatedPerson contextRef="I_DetailofResolution2">Executive Director</in-capmkt:DesignationOfDesignatedPerson><in-capmkt:NameOfDesignatedPerson contextRef="D_DetailofResolution2">Smita Agarwal</in-capmkt:NameOfDesignatedPerson><in-capmkt:DirectorIdentificationNumberOfDirector contextRef="D_DetailofResolution2">00129260</in-capmkt:DirectorIdentificationNumberOfDirector><in-capmkt:DateOfStartOfTenure contextRef="D_DetailofResolution2">2025-10-01</in-capmkt:DateOfStartOfTenure><in-capmkt:DateOfEndOfTenure contextRef="D_DetailofResolution2">2027-09-30</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">Ratification of the Remuneration payable to the Cost
Auditors</in-capmkt:DetailsOfOtherSubCategoryOfResolution><in-capmkt:BriefDetailsOfResolution contextRef="D_DetailofResolution3">Ratification of the Remuneration payable to the Cost
Auditors</in-capmkt:BriefDetailsOfResolution></xbrli:xbrl>
