<?xml version="1.0" encoding="UTF-8" standalone="no"?><xbrli:xbrl xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:in-capmkt="https://www.sebi.gov.in/xbrl/2022-12-31/in-capmkt" xmlns:in-capmkt-ent="https://www.sebi.gov.in/xbrl/Regulation_30_Restructuring/2022-12-31/in-capmkt/in-capmkt-ent" xmlns:in-capmkt-roles="https://www.sebi.gov.in/xbrl/Regulation_30_Restructuring/2022-12-31/in-capmkt-roles" 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-2022-12-31.xsd" xlink:type="simple"/><xbrli:context id="OneI"><xbrli:entity><xbrli:identifier scheme="https://www.sebi.gov.in/in-capmkt/ISIN">500411</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:instant>2026-04-09</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="OneD"><xbrli:entity><xbrli:identifier scheme="https://www.sebi.gov.in/in-capmkt/ISIN">500411</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2026-04-09</xbrli:startDate><xbrli:endDate>2026-04-09</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:NameOfTheCompany contextRef="OneI">THERMAX LIMITED</in-capmkt:NameOfTheCompany><in-capmkt:NSESymbol contextRef="OneI">THERMAX</in-capmkt:NSESymbol><in-capmkt:TypeOfAnnouncementPertainingToRegulation30Restructuring contextRef="OneD">Update</in-capmkt:TypeOfAnnouncementPertainingToRegulation30Restructuring><in-capmkt:DateOfEventOfAnnouncementPertainingToRegulation30Restructuring contextRef="OneI">2026-04-09</in-capmkt:DateOfEventOfAnnouncementPertainingToRegulation30Restructuring><in-capmkt:DateOfInitialAnnouncement contextRef="OneI">2026-02-27</in-capmkt:DateOfInitialAnnouncement><in-capmkt:DateOfLatestAnnouncement contextRef="OneI">2026-04-09</in-capmkt:DateOfLatestAnnouncement><in-capmkt:DateOfReport contextRef="OneI">2026-04-09</in-capmkt:DateOfReport><in-capmkt:BriefDetailsOfInitialAnnouncement contextRef="OneI">This is in continuation to our earlier intimation dated February 27, 2026, with respect to entering into a Share Subscription and Share Purchase Agreement and a Shareholders’ Agreement (collectively, the “Definitive Agreements”) with Exactspace Technologies Private Limited (“Exactspace”) and its Promoters and existing investors for acquisition of 35.83% (on a fully diluted basis) stake in Exactspace. In this regard, we wish to inform you that the Company has completed the said acquisition and the Company’s shareholding has increased to 51% (on a fully diluted basis), resulting in Exactspace becoming a Subsidiary of the Company.</in-capmkt:BriefDetailsOfInitialAnnouncement><in-capmkt:ReasonForUpdate contextRef="OneD">Transaction Completed</in-capmkt:ReasonForUpdate><in-capmkt:TransactionCompleted contextRef="OneI">This is in continuation to our earlier intimation dated February 27, 2026, with respect to entering into a Share Subscription and Share Purchase Agreement and a Shareholders’ Agreement (collectively, the “Definitive Agreements”) with Exactspace Technologies Private Limited (“Exactspace”) and its Promoters and existing investors for acquisition of 35.83% (on a fully diluted basis) stake in Exactspace. In this regard, we wish to inform you that the Company has completed the said acquisition and the Company’s shareholding has increased to 51% (on a fully diluted basis), resulting in Exactspace becoming a Subsidiary of the Company.</in-capmkt:TransactionCompleted><in-capmkt:AmountOfTransactionCompleted contextRef="OneD" decimals="0" unitRef="INR">0</in-capmkt:AmountOfTransactionCompleted><in-capmkt:DateOfTransactionCompleted contextRef="OneI">2026-04-09</in-capmkt:DateOfTransactionCompleted><in-capmkt:PercentageOfTransactionCompleted contextRef="OneI" decimals="INF" unitRef="pure">1</in-capmkt:PercentageOfTransactionCompleted><in-capmkt:AnyOtherBriefSignificantInformationForAnnouncementUpdate contextRef="OneI">Pursuant to completion of transaction, Exactspace has become a subsidiary of the Company</in-capmkt:AnyOtherBriefSignificantInformationForAnnouncementUpdate></xbrli:xbrl>