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<!--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/ScripCode">543349</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:instant>2026-05-19</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="OneD"><xbrli:entity><xbrli:identifier scheme="http://www.sebi.gov.in/in-capmkt/ScripCode">543349</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2026-05-19</xbrli:startDate><xbrli:endDate>2026-05-19</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="D_RestructuringEntity1"><xbrli:entity><xbrli:identifier scheme="http://www.sebi.gov.in/in-capmkt/ScripCode">543349</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2026-05-19</xbrli:startDate><xbrli:endDate>2026-05-19</xbrli:endDate></xbrli:period><xbrli:scenario><xbrldi:typedMember dimension="in-capmkt:RestructuringEntityAxis"><in-capmkt:RestructuringEntityDomain>RestructuringEntityDomain1</in-capmkt:RestructuringEntityDomain></xbrldi:typedMember></xbrli:scenario></xbrli:context><xbrli:context id="I_RestructuringEntity1"><xbrli:entity><xbrli:identifier scheme="http://www.sebi.gov.in/in-capmkt/ScripCode">543349</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:instant>2026-05-19</xbrli:instant></xbrli:period><xbrli:scenario><xbrldi:typedMember dimension="in-capmkt:RestructuringEntityAxis"><in-capmkt:RestructuringEntityDomain>RestructuringEntityDomain1</in-capmkt:RestructuringEntityDomain></xbrldi:typedMember></xbrli:scenario></xbrli:context><xbrli:unit id="pure"><xbrli:measure>xbrli:pure</xbrli:measure></xbrli:unit><xbrli:unit id="shares"><xbrli:measure>xbrli:shares</xbrli:measure></xbrli:unit><in-capmkt:ScripCode contextRef="OneI">543349</in-capmkt:ScripCode><in-capmkt:NameOfTheCompany contextRef="OneI">ACUTAAS CHEMICALS LIMITED</in-capmkt:NameOfTheCompany><in-capmkt:NSESymbol contextRef="OneI">ACUTAAS</in-capmkt:NSESymbol><in-capmkt:MSEISymbol contextRef="OneI">NOTLISTED</in-capmkt:MSEISymbol><in-capmkt:ISIN contextRef="OneI">INE00FF01025</in-capmkt:ISIN><in-capmkt:TypeOfAnnouncementPertainingToRegulation30Restructuring contextRef="OneD">New</in-capmkt:TypeOfAnnouncementPertainingToRegulation30Restructuring><in-capmkt:TypeOfEventOfAnnouncementPertainingToRegulation30Restructuring contextRef="OneD">Other Restructuring</in-capmkt:TypeOfEventOfAnnouncementPertainingToRegulation30Restructuring><in-capmkt:WhetherEventOrInformationDisclosedIsAnOutcomeOfBoardMeeting contextRef="OneD">true</in-capmkt:WhetherEventOrInformationDisclosedIsAnOutcomeOfBoardMeeting><in-capmkt:DateOfBoardMeeting contextRef="OneI">2026-05-19</in-capmkt:DateOfBoardMeeting><in-capmkt:EndTimeOfBoardMeeting contextRef="OneD">10:50:00</in-capmkt:EndTimeOfBoardMeeting><in-capmkt:DateOfReport contextRef="OneI">2026-05-19</in-capmkt:DateOfReport><in-capmkt:RemarksForWebsiteDissemination contextRef="OneI">Board of Directors of Acutaas Chemicals Electrolytes Private Limited (“ACEPL”), a wholly owned subsidiary of Acutaas Chemicals Limited (“Company”), at its meeting held on May 19, 2026, has approved the allotment of 1,111 number of equity shares of face value of Rs. 10 (Rupees Ten Only) each at an issue price of Rs. 52,490/- per share (including premium of Rs. 52,480/- per share) on partly paid-up preferential basis by way of private placement to an Identified Investor - A.R.Z Pharma Ltd.</in-capmkt:RemarksForWebsiteDissemination><in-capmkt:RestructuringEntityRelationshipWithListedEntity contextRef="D_RestructuringEntity1">Subsidiary</in-capmkt:RestructuringEntityRelationshipWithListedEntity><in-capmkt:NumberOfSharesUnderPromoterAndPromoterGroupCategoryPreEvent contextRef="I_RestructuringEntity1" unitRef="shares" decimals="INF">10000</in-capmkt:NumberOfSharesUnderPromoterAndPromoterGroupCategoryPreEvent><in-capmkt:PercentageOfSharesUnderPromoterAndPromoterGroupCategoryPreEvent contextRef="I_RestructuringEntity1" unitRef="pure" decimals="INF">1</in-capmkt:PercentageOfSharesUnderPromoterAndPromoterGroupCategoryPreEvent><in-capmkt:NumberOfSharesUnderPublicCategoryPreEvent contextRef="I_RestructuringEntity1" unitRef="shares" decimals="INF">0</in-capmkt:NumberOfSharesUnderPublicCategoryPreEvent><in-capmkt:PercentageOfSharesUnderPublicCategoryPreEvent contextRef="I_RestructuringEntity1" unitRef="pure" decimals="INF">0</in-capmkt:PercentageOfSharesUnderPublicCategoryPreEvent><in-capmkt:NumberOfSharesUnderOtherCategoryPreEvent contextRef="I_RestructuringEntity1" unitRef="shares" decimals="INF">0</in-capmkt:NumberOfSharesUnderOtherCategoryPreEvent><in-capmkt:PercentageOfSharesUnderOtherCategoryPreEvent contextRef="I_RestructuringEntity1" unitRef="pure" decimals="INF">0</in-capmkt:PercentageOfSharesUnderOtherCategoryPreEvent><in-capmkt:TotalNumberOfSharesPreEvent contextRef="I_RestructuringEntity1" unitRef="shares" decimals="INF">10000</in-capmkt:TotalNumberOfSharesPreEvent><in-capmkt:TotalPercentageOfSharesPreEvent contextRef="I_RestructuringEntity1" unitRef="pure" decimals="INF">1</in-capmkt:TotalPercentageOfSharesPreEvent><in-capmkt:NumberOfSharesUnderPromoterAndPromoterGroupCategoryPostEvent contextRef="I_RestructuringEntity1" unitRef="shares" decimals="INF">10000</in-capmkt:NumberOfSharesUnderPromoterAndPromoterGroupCategoryPostEvent><in-capmkt:PercentageOfSharesUnderPromoterAndPromoterGroupCategoryPostEvent contextRef="I_RestructuringEntity1" unitRef="pure" decimals="INF">0.9</in-capmkt:PercentageOfSharesUnderPromoterAndPromoterGroupCategoryPostEvent><in-capmkt:NumberOfSharesUnderPublicCategoryPostEvent contextRef="I_RestructuringEntity1" unitRef="shares" decimals="INF">1111</in-capmkt:NumberOfSharesUnderPublicCategoryPostEvent><in-capmkt:PercentageOfSharesUnderPublicCategoryPostEvent contextRef="I_RestructuringEntity1" unitRef="pure" decimals="INF">0.1</in-capmkt:PercentageOfSharesUnderPublicCategoryPostEvent><in-capmkt:NumberOfSharesUnderOtherCategoryPostEvent contextRef="I_RestructuringEntity1" unitRef="shares" decimals="INF">0</in-capmkt:NumberOfSharesUnderOtherCategoryPostEvent><in-capmkt:PercentageOfSharesUnderOtherCategoryPostEvent contextRef="I_RestructuringEntity1" unitRef="pure" decimals="INF">0</in-capmkt:PercentageOfSharesUnderOtherCategoryPostEvent><in-capmkt:TotalNumberOfSharesPostEvent contextRef="I_RestructuringEntity1" unitRef="shares" decimals="INF">11111</in-capmkt:TotalNumberOfSharesPostEvent><in-capmkt:TotalPercentageOfSharesPostEvent contextRef="I_RestructuringEntity1" unitRef="pure" decimals="INF">1</in-capmkt:TotalPercentageOfSharesPostEvent><in-capmkt:DetailsAndReasonsForOtherRestructuring contextRef="OneI">Acutaas Chemicals Electrolytes Private Limited ("ACEPL"), a wholly owned subsidiary of Acutaas Chemicals Limited, has issued partly paid-up equity shares on preferential basis by way of private placement to A.R.Z Pharma Ltd.</in-capmkt:DetailsAndReasonsForOtherRestructuring><in-capmkt:QuantitativeEffectOfOtherRestructuring contextRef="OneI">Acutaas Chemicals Limited shareholding in ACEPL stands reduced from  100% to 90% of the post issue share capital of ACEPL.</in-capmkt:QuantitativeEffectOfOtherRestructuring><in-capmkt:QualitativeEffectOfOtherRestructuring contextRef="OneI">ACEPL has ceased to be a wholly owned subsidiary of the Company; however, it shall continue to remain a subsidiary of the Company.</in-capmkt:QualitativeEffectOfOtherRestructuring><in-capmkt:WhetherThePromoterOrPromoterGroupOrGroupCompaniesIncludingAssociateOrHoldingOrSubsidiaryOrDirectorOrKMPOrSMPAndItsRelativesHaveAnyInterestInTheEntityBeingRestructuring contextRef="OneD">false</in-capmkt:WhetherThePromoterOrPromoterGroupOrGroupCompaniesIncludingAssociateOrHoldingOrSubsidiaryOrDirectorOrKMPOrSMPAndItsRelativesHaveAnyInterestInTheEntityBeingRestructuring><in-capmkt:BriefDetailsOfChangeInShareholdingPatternOfAllEntitiesForOtherRestructuring contextRef="OneI">Post allotment, Acutaas Chemicals Limited shareholding in ACEPL stands reduced from  100% to 90% of the post issue share capital of ACEPL.</in-capmkt:BriefDetailsOfChangeInShareholdingPatternOfAllEntitiesForOtherRestructuring></xbrli:xbrl>
