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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 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contextRef="OneI">INE607A01022</in-capmkt:ISIN><in-capmkt:TypeOfAnnouncementPertainingToRegulation30Restructuring contextRef="OneD">New</in-capmkt:TypeOfAnnouncementPertainingToRegulation30Restructuring><in-capmkt:TypeOfEventOfAnnouncementPertainingToRegulation30Restructuring contextRef="OneD">Amalgamation/ Merger</in-capmkt:TypeOfEventOfAnnouncementPertainingToRegulation30Restructuring><in-capmkt:WhetherEventOrInformationDisclosedIsAnOutcomeOfBoardMeeting contextRef="OneD">true</in-capmkt:WhetherEventOrInformationDisclosedIsAnOutcomeOfBoardMeeting><in-capmkt:DateOfBoardMeeting contextRef="OneI">2026-09-25</in-capmkt:DateOfBoardMeeting><in-capmkt:EndTimeOfBoardMeeting contextRef="OneD">15:00:00</in-capmkt:EndTimeOfBoardMeeting><in-capmkt:DateOfReport contextRef="OneI">2026-09-25</in-capmkt:DateOfReport><in-capmkt:NameOfTheAmalgamatedEntity contextRef="I_AmalgamatedEntity1">FLOW TECH CHEMICALS PRIVATE LIMITED</in-capmkt:NameOfTheAmalgamatedEntity><in-capmkt:TypeOfAmalgamatedEntity contextRef="D_AmalgamatedEntity1">Transferor</in-capmkt:TypeOfAmalgamatedEntity><in-capmkt:RelationshipOfAmalgamatedEntityWithListedEntities contextRef="D_AmalgamatedEntity1">Subsidiary</in-capmkt:RelationshipOfAmalgamatedEntityWithListedEntities><in-capmkt:BriefDetailsOfTurnoverOrSizeOrOtherDetailsOfAmalgamatedEntity contextRef="I_AmalgamatedEntity1">Flow Tech Chemicals Private Limited (“Flow Tech”/ “Transferor”), a wholly owned subsidiary of the Company.
(Amount in Rs. Lakhs)
 Name of Entity: Flow Tech Chemicals Limited, Turnover as on 31.03.2026: 34166.14, EBITDA as on 31.03.2026: 2019.27</in-capmkt:BriefDetailsOfTurnoverOrSizeOrOtherDetailsOfAmalgamatedEntity><in-capmkt:NumberOfSharesUnderPromoterAndPromoterGroupCategoryPreEvent contextRef="I_AmalgamatedEntity1" unitRef="shares" decimals="INF">762608</in-capmkt:NumberOfSharesUnderPromoterAndPromoterGroupCategoryPreEvent><in-capmkt:PercentageOfSharesUnderPromoterAndPromoterGroupCategoryPreEvent contextRef="I_AmalgamatedEntity1" unitRef="pure" decimals="INF">1</in-capmkt:PercentageOfSharesUnderPromoterAndPromoterGroupCategoryPreEvent><in-capmkt:NumberOfSharesUnderPublicCategoryPreEvent contextRef="I_AmalgamatedEntity1" unitRef="shares" decimals="INF">0</in-capmkt:NumberOfSharesUnderPublicCategoryPreEvent><in-capmkt:PercentageOfSharesUnderPublicCategoryPreEvent contextRef="I_AmalgamatedEntity1" unitRef="pure" decimals="INF">0</in-capmkt:PercentageOfSharesUnderPublicCategoryPreEvent><in-capmkt:NumberOfSharesUnderOtherCategoryPreEvent contextRef="I_AmalgamatedEntity1" unitRef="shares" decimals="INF">0</in-capmkt:NumberOfSharesUnderOtherCategoryPreEvent><in-capmkt:PercentageOfSharesUnderOtherCategoryPreEvent contextRef="I_AmalgamatedEntity1" unitRef="pure" decimals="INF">0</in-capmkt:PercentageOfSharesUnderOtherCategoryPreEvent><in-capmkt:TotalNumberOfSharesPreEvent contextRef="I_AmalgamatedEntity1" unitRef="shares" decimals="INF">762608</in-capmkt:TotalNumberOfSharesPreEvent><in-capmkt:TotalPercentageOfSharesPreEvent contextRef="I_AmalgamatedEntity1" unitRef="pure" decimals="INF">1</in-capmkt:TotalPercentageOfSharesPreEvent><in-capmkt:NumberOfSharesUnderPromoterAndPromoterGroupCategoryPostEvent contextRef="I_AmalgamatedEntity1" unitRef="shares" decimals="INF">0</in-capmkt:NumberOfSharesUnderPromoterAndPromoterGroupCategoryPostEvent><in-capmkt:PercentageOfSharesUnderPromoterAndPromoterGroupCategoryPostEvent contextRef="I_AmalgamatedEntity1" unitRef="pure" decimals="INF">0</in-capmkt:PercentageOfSharesUnderPromoterAndPromoterGroupCategoryPostEvent><in-capmkt:NumberOfSharesUnderPublicCategoryPostEvent contextRef="I_AmalgamatedEntity1" unitRef="shares" decimals="INF">0</in-capmkt:NumberOfSharesUnderPublicCategoryPostEvent><in-capmkt:PercentageOfSharesUnderPublicCategoryPostEvent contextRef="I_AmalgamatedEntity1" unitRef="pure" decimals="INF">0</in-capmkt:PercentageOfSharesUnderPublicCategoryPostEvent><in-capmkt:NumberOfSharesUnderOtherCategoryPostEvent contextRef="I_AmalgamatedEntity1" unitRef="shares" decimals="INF">0</in-capmkt:NumberOfSharesUnderOtherCategoryPostEvent><in-capmkt:PercentageOfSharesUnderOtherCategoryPostEvent contextRef="I_AmalgamatedEntity1" unitRef="pure" decimals="INF">0</in-capmkt:PercentageOfSharesUnderOtherCategoryPostEvent><in-capmkt:TotalNumberOfSharesPostEvent contextRef="I_AmalgamatedEntity1" unitRef="shares" decimals="INF">0</in-capmkt:TotalNumberOfSharesPostEvent><in-capmkt:TotalPercentageOfSharesPostEvent contextRef="I_AmalgamatedEntity1" unitRef="pure" decimals="INF">0</in-capmkt:TotalPercentageOfSharesPostEvent><in-capmkt:NameOfTheAmalgamatedEntity contextRef="I_AmalgamatedEntity2">PRIMO CHEMICALS LIMITED</in-capmkt:NameOfTheAmalgamatedEntity><in-capmkt:TypeOfAmalgamatedEntity contextRef="D_AmalgamatedEntity2">Transferee</in-capmkt:TypeOfAmalgamatedEntity><in-capmkt:RelationshipOfAmalgamatedEntityWithListedEntities contextRef="D_AmalgamatedEntity2">Listed Entity (self)</in-capmkt:RelationshipOfAmalgamatedEntityWithListedEntities><in-capmkt:BriefDetailsOfTurnoverOrSizeOrOtherDetailsOfAmalgamatedEntity contextRef="I_AmalgamatedEntity2">Primo Chemicals Limited (“PCL”/ “Transferee”)(Amount in Rs. Lakhs) Turnover as on 31.03.2026: 56169.23,  EBITDA as on 31.03.2026: 8788.55,</in-capmkt:BriefDetailsOfTurnoverOrSizeOrOtherDetailsOfAmalgamatedEntity><in-capmkt:NumberOfSharesUnderPromoterAndPromoterGroupCategoryPreEvent contextRef="I_AmalgamatedEntity2" unitRef="shares" decimals="INF">78507830</in-capmkt:NumberOfSharesUnderPromoterAndPromoterGroupCategoryPreEvent><in-capmkt:PercentageOfSharesUnderPromoterAndPromoterGroupCategoryPreEvent contextRef="I_AmalgamatedEntity2" unitRef="pure" decimals="INF">0.324</in-capmkt:PercentageOfSharesUnderPromoterAndPromoterGroupCategoryPreEvent><in-capmkt:NumberOfSharesUnderPublicCategoryPreEvent contextRef="I_AmalgamatedEntity2" unitRef="shares" decimals="INF">163835390</in-capmkt:NumberOfSharesUnderPublicCategoryPreEvent><in-capmkt:PercentageOfSharesUnderPublicCategoryPreEvent contextRef="I_AmalgamatedEntity2" unitRef="pure" decimals="INF">0.676</in-capmkt:PercentageOfSharesUnderPublicCategoryPreEvent><in-capmkt:NumberOfSharesUnderOtherCategoryPreEvent contextRef="I_AmalgamatedEntity2" unitRef="shares" decimals="INF">0</in-capmkt:NumberOfSharesUnderOtherCategoryPreEvent><in-capmkt:PercentageOfSharesUnderOtherCategoryPreEvent contextRef="I_AmalgamatedEntity2" unitRef="pure" decimals="INF">0</in-capmkt:PercentageOfSharesUnderOtherCategoryPreEvent><in-capmkt:TotalNumberOfSharesPreEvent contextRef="I_AmalgamatedEntity2" unitRef="shares" decimals="INF">242343220</in-capmkt:TotalNumberOfSharesPreEvent><in-capmkt:TotalPercentageOfSharesPreEvent contextRef="I_AmalgamatedEntity2" unitRef="pure" decimals="INF">1</in-capmkt:TotalPercentageOfSharesPreEvent><in-capmkt:NumberOfSharesUnderPromoterAndPromoterGroupCategoryPostEvent contextRef="I_AmalgamatedEntity2" unitRef="shares" decimals="INF">78507830</in-capmkt:NumberOfSharesUnderPromoterAndPromoterGroupCategoryPostEvent><in-capmkt:PercentageOfSharesUnderPromoterAndPromoterGroupCategoryPostEvent contextRef="I_AmalgamatedEntity2" unitRef="pure" decimals="INF">0.324</in-capmkt:PercentageOfSharesUnderPromoterAndPromoterGroupCategoryPostEvent><in-capmkt:NumberOfSharesUnderPublicCategoryPostEvent contextRef="I_AmalgamatedEntity2" unitRef="shares" decimals="INF">163835390</in-capmkt:NumberOfSharesUnderPublicCategoryPostEvent><in-capmkt:PercentageOfSharesUnderPublicCategoryPostEvent contextRef="I_AmalgamatedEntity2" unitRef="pure" decimals="INF">0.676</in-capmkt:PercentageOfSharesUnderPublicCategoryPostEvent><in-capmkt:NumberOfSharesUnderOtherCategoryPostEvent contextRef="I_AmalgamatedEntity2" unitRef="shares" decimals="INF">0</in-capmkt:NumberOfSharesUnderOtherCategoryPostEvent><in-capmkt:PercentageOfSharesUnderOtherCategoryPostEvent contextRef="I_AmalgamatedEntity2" unitRef="pure" decimals="INF">0</in-capmkt:PercentageOfSharesUnderOtherCategoryPostEvent><in-capmkt:TotalNumberOfSharesPostEvent contextRef="I_AmalgamatedEntity2" unitRef="shares" decimals="INF">242343220</in-capmkt:TotalNumberOfSharesPostEvent><in-capmkt:TotalPercentageOfSharesPostEvent contextRef="I_AmalgamatedEntity2" unitRef="pure" decimals="INF">1</in-capmkt:TotalPercentageOfSharesPostEvent><in-capmkt:WhetherTheAmalgamationOrMergerWouldFallWithinRelatedPartyTransactions contextRef="OneD">false</in-capmkt:WhetherTheAmalgamationOrMergerWouldFallWithinRelatedPartyTransactions><in-capmkt:WhetherThePromoterOrPromoterGroupOrGroupCompaniesIncludingAssociateOrHoldingOrSubsidiaryOrDirectorOrKMPOrSMPAndItsRelativesHaveAnyInterestInTheEntityBeingAmalgamated contextRef="OneD">true</in-capmkt:WhetherThePromoterOrPromoterGroupOrGroupCompaniesIncludingAssociateOrHoldingOrSubsidiaryOrDirectorOrKMPOrSMPAndItsRelativesHaveAnyInterestInTheEntityBeingAmalgamated><in-capmkt:NatureOfInterestAndDetailsThereofForAmalgamationOrMergerEvent contextRef="OneI">Flow Tech Chemicals Private Limited (“Flow Tech”/ “Transferor”) is a wholly owned subsidiary of the Primo Chemicals Limited. The proposed merger falls within the purview of related party transaction.

However, the proposed merger will not fall within purview of related party transaction in terms of section 188 of the Companies Act, 2013.</in-capmkt:NatureOfInterestAndDetailsThereofForAmalgamationOrMergerEvent><in-capmkt:WhetherAmalgamationOrMergerIsDoneAtArmsLength contextRef="OneD">true</in-capmkt:WhetherAmalgamationOrMergerIsDoneAtArmsLength><in-capmkt:AreaOfBusinessOfTheEntitiesForAmalgamationOrMergerEvent contextRef="OneI">Primo Chemicals Limited is engaged in the manufacturing of Caustic Soda Lye, Caustic Soda Flakes, Liquid Chlorine, Hydrochloric Acid, Sodium Hypochlorite, Hydrogen Gas, SBP and Aluminium Chloride. The main product of the PCL is caustic soda lye and liquid chlorine, hydrochloric acid, hydrogen gas and sodium hypochlorite are its bye-products. Flow Tech is engaged in the manufacturing of Chlorinated Paraffin and Hydrochloric Acid.</in-capmkt:AreaOfBusinessOfTheEntitiesForAmalgamationOrMergerEvent><in-capmkt:RationaleForAmalgamationOrMerger contextRef="OneI">The proposed amalgamation is expected to provide the following benefits:

a. Leading to a more efficient utilization of capital and creation of a consolidated base of assets and resources for future growth and a greater value for shareholders and all other stakeholders;

b. Simplification of overall group structure by fully integrating Flow Tech's operations directly within Primo and creating efficiencies via amalgamation;

c. Reduction in the management overlaps due to operation of the multiple entities and more focused leadership;

d. Reduction in multiplicity of legal and regulatory compliances, reduction in overheads, including administrative, managerial and other costs amongst all;

e. Synergy benefits, such as competitive edge, consolidation of businesses to combine growth opportunities to capitalize on future growth potential which would in-turn significantly help in efficient utilization of financial and operational resources; and

f. Pooling of proprietary information, personnel, financial, managerial and other resources, thereby contributing to future growth</in-capmkt:RationaleForAmalgamationOrMerger><in-capmkt:NatureOfConsiderationForAmalgamationOrMerger contextRef="OneD">Others</in-capmkt:NatureOfConsiderationForAmalgamationOrMerger><in-capmkt:DetailsOfConsiderationForAmalgamationOrMerger contextRef="OneI">Not Applicable, since the scheme does not involve payment of any cash consideration as no equity shares are proposed to be issued by PCL pursuant to the Scheme, as Flow Tech is a wholly owned subsidiary of PCL. Accordingly, no share exchange ratio is applicable and no consideration is payable to the shareholders of the Transferor Company.</in-capmkt:DetailsOfConsiderationForAmalgamationOrMerger><in-capmkt:BriefDetailsOfChangeInShareholdingPatternOfListedEntityForAmalgamationOrMerger contextRef="OneI">Not Applicable, since there will be no change in the shareholding pattern of the Transferee Company pursuant to the proposed Scheme. since there is no fresh equity shares that will be issued by the Transferee Company and the pre and post amalgamation shareholding pattern of the Company would remain the same.</in-capmkt:BriefDetailsOfChangeInShareholdingPatternOfListedEntityForAmalgamationOrMerger><in-capmkt:AnyOtherBriefSignificantInformationForAmalgamationOrMerger contextRef="OneI">NA</in-capmkt:AnyOtherBriefSignificantInformationForAmalgamationOrMerger></xbrli:xbrl>
