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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">543318</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:instant>2026-06-24</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="OneD"><xbrli:entity><xbrli:identifier scheme="http://www.sebi.gov.in/in-capmkt/ScripCode">543318</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2026-06-24</xbrli:startDate><xbrli:endDate>2026-06-24</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="I_FinancialYear1"><xbrli:entity><xbrli:identifier scheme="http://www.sebi.gov.in/in-capmkt/ScripCode">543318</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:instant>2026-06-24</xbrli:instant></xbrli:period><xbrli:scenario><xbrldi:explicitMember dimension="in-capmkt:TurnoverForLastThreeFinancialYearsAxis">in-capmkt:FinancialYear1Member</xbrldi:explicitMember></xbrli:scenario></xbrli:context><xbrli:context id="I_FinancialYear2"><xbrli:entity><xbrli:identifier 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scheme="http://www.sebi.gov.in/in-capmkt/ScripCode">543318</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2026-06-24</xbrli:startDate><xbrli:endDate>2026-06-24</xbrli:endDate></xbrli:period><xbrli:scenario><xbrldi:explicitMember dimension="in-capmkt:TurnoverForLastThreeFinancialYearsAxis">in-capmkt:FinancialYear1Member</xbrldi:explicitMember></xbrli:scenario></xbrli:context><xbrli:context id="D_FinancialYear2"><xbrli:entity><xbrli:identifier scheme="http://www.sebi.gov.in/in-capmkt/ScripCode">543318</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2026-06-24</xbrli:startDate><xbrli:endDate>2026-06-24</xbrli:endDate></xbrli:period><xbrli:scenario><xbrldi:explicitMember dimension="in-capmkt:TurnoverForLastThreeFinancialYearsAxis">in-capmkt:FinancialYear2Member</xbrldi:explicitMember></xbrli:scenario></xbrli:context><xbrli:context id="D_FinancialYear3"><xbrli:entity><xbrli:identifier scheme="http://www.sebi.gov.in/in-capmkt/ScripCode">543318</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2026-06-24</xbrli:startDate><xbrli:endDate>2026-06-24</xbrli:endDate></xbrli:period><xbrli:scenario><xbrldi:explicitMember dimension="in-capmkt:TurnoverForLastThreeFinancialYearsAxis">in-capmkt:FinancialYear3Member</xbrldi:explicitMember></xbrli:scenario></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:ScripCode contextRef="OneI">543318</in-capmkt:ScripCode><in-capmkt:NameOfTheCompany contextRef="OneI">Clean Science and Technology Limited</in-capmkt:NameOfTheCompany><in-capmkt:NSESymbol contextRef="OneI">CLEAN</in-capmkt:NSESymbol><in-capmkt:MSEISymbol contextRef="OneI">NOTLISTED</in-capmkt:MSEISymbol><in-capmkt:ISIN contextRef="OneI">INE227W01023</in-capmkt:ISIN><in-capmkt:TypeOfAnnouncementPertainingToRegulation30Restructuring contextRef="OneD">New</in-capmkt:TypeOfAnnouncementPertainingToRegulation30Restructuring><in-capmkt:TypeOfEventOfAnnouncementPertainingToRegulation30Restructuring contextRef="OneD">Acquisition (including agreement to acquire)</in-capmkt:TypeOfEventOfAnnouncementPertainingToRegulation30Restructuring><in-capmkt:WhetherEventOrInformationDisclosedIsAnOutcomeOfBoardMeeting contextRef="OneD">false</in-capmkt:WhetherEventOrInformationDisclosedIsAnOutcomeOfBoardMeeting><in-capmkt:DateOfOccurrenceOfEvent contextRef="OneI">2026-06-24</in-capmkt:DateOfOccurrenceOfEvent><in-capmkt:TimeOfOccurrenceOfEvent contextRef="OneD">14:45:00</in-capmkt:TimeOfOccurrenceOfEvent><in-capmkt:DateOfReport contextRef="OneI">2026-06-24</in-capmkt:DateOfReport><in-capmkt:RemarksForWebsiteDissemination contextRef="OneI">"(a) In the row ""Whether the said RPT is Material""  we have selected “No”, &lt;BR&gt; 
This is because If we select “Yes”  the date of approval of shareholder /date of Special Resolution is required to be mentioned. However, pursuant to Regulation 23(5)(b) of the SEBI (Listing Obligation and Disclosure Requirements) Regulations, 2015 the said shareholders approvals is not required if the transaction is with a Wholly Owned Subsidiary. &lt;BR&gt; 
Please note that Clean Fino-Chem Limited is a Wholly owned subsidiary of Clean Science and Technology Limited hence shareholders approval is not required and the transaction is at arms length. &lt;BR&gt; 
</in-capmkt:RemarksForWebsiteDissemination><in-capmkt:NameOfAcquirer contextRef="OneI">CLEAN SCIENCE AND TECHNOLOGY LIMITED</in-capmkt:NameOfAcquirer><in-capmkt:RelationshipOfAcquirerWithTheListedEntity contextRef="OneD">Listed Entity (self)</in-capmkt:RelationshipOfAcquirerWithTheListedEntity><in-capmkt:NameOfTheTargetEntity contextRef="OneI">CLEAN FINO-CHEM LIMITED</in-capmkt:NameOfTheTargetEntity><in-capmkt:TurnoverOfTargetEntity contextRef="OneD" unitRef="INR" decimals="-7">1660000000</in-capmkt:TurnoverOfTargetEntity><in-capmkt:ProfitAfterTaxOfTargetEntity contextRef="OneD" unitRef="INR" decimals="-7">-210000000</in-capmkt:ProfitAfterTaxOfTargetEntity><in-capmkt:NetWorthOfTargetEntity contextRef="OneD" unitRef="INR" decimals="-7">6920000000</in-capmkt:NetWorthOfTargetEntity><in-capmkt:WhetherTheAcquisitionWouldFallWithinRelatedPartyTransactions contextRef="OneD">true</in-capmkt:WhetherTheAcquisitionWouldFallWithinRelatedPartyTransactions><in-capmkt:DateOfBoardMeetingInWhichRPTApprovalTakenForAcquisitionEvent contextRef="OneI">2026-01-31</in-capmkt:DateOfBoardMeetingInWhichRPTApprovalTakenForAcquisitionEvent><in-capmkt:DateOfAuditCommitteeMeetingInWhichRPTApprovalTakenForAcquisitionEvent contextRef="OneI">2026-01-31</in-capmkt:DateOfAuditCommitteeMeetingInWhichRPTApprovalTakenForAcquisitionEvent><in-capmkt:WhetherAcquisitionEventRPTIsMaterial contextRef="OneD">false</in-capmkt:WhetherAcquisitionEventRPTIsMaterial><in-capmkt:WhetherThePromoterOrPromoterGroupOrGroupCompaniesIncludingAssociateOrHoldingOrSubsidiaryOrDirectorOrKMPOrSMPAndItsRelativesHaveAnyInterestInTheEntityBeingAcquired contextRef="OneD">false</in-capmkt:WhetherThePromoterOrPromoterGroupOrGroupCompaniesIncludingAssociateOrHoldingOrSubsidiaryOrDirectorOrKMPOrSMPAndItsRelativesHaveAnyInterestInTheEntityBeingAcquired><in-capmkt:WhetherAcquisitionEventIsDoneAtArmsLength contextRef="OneD">true</in-capmkt:WhetherAcquisitionEventIsDoneAtArmsLength><in-capmkt:IndustryToWhichTheEntityBeingAcquiredBelongs contextRef="OneI">Speciality Chemicals</in-capmkt:IndustryToWhichTheEntityBeingAcquiredBelongs><in-capmkt:ObjectsAndImpactOfAcquisitionIncludingButNotLimitedToDisclosureOfReasonsForAcquisitionOfTargetEntityIfItsBusinessIsOutsideTheMainLineOfBusinessOfTheListedEntity contextRef="OneI">The Additional Capital will be primarily used for funding its projects</in-capmkt:ObjectsAndImpactOfAcquisitionIncludingButNotLimitedToDisclosureOfReasonsForAcquisitionOfTargetEntityIfItsBusinessIsOutsideTheMainLineOfBusinessOfTheListedEntity><in-capmkt:WhetherAnyGovernmentalOrRegulatoryApprovalsRequiredForTheAcquisition contextRef="OneD">NA</in-capmkt:WhetherAnyGovernmentalOrRegulatoryApprovalsRequiredForTheAcquisition><in-capmkt:WhetherTheAcquisitionTransactionWillBeInTranches contextRef="OneD">false</in-capmkt:WhetherTheAcquisitionTransactionWillBeInTranches><in-capmkt:IndicativeTimePeriodForCompletionOfTheAcquisition contextRef="OneI">Not applicable</in-capmkt:IndicativeTimePeriodForCompletionOfTheAcquisition><in-capmkt:NatureOfConsiderationForAcquisitionEvent contextRef="OneD">Cash</in-capmkt:NatureOfConsiderationForAcquisitionEvent><in-capmkt:AmountOfCashConsiderationForAcquisitionEvent contextRef="OneD" unitRef="INR" decimals="-7">500000000</in-capmkt:AmountOfCashConsiderationForAcquisitionEvent><in-capmkt:DetailsOfConsiderationForAcquisitionEvent contextRef="OneI">Equity shares of face value of Rs. 10/- (Rupees Ten Only) each at a premium of Rs. 588/- (Rupees Five Hundred Eighty-Eight Only) per share aggregation to Rs. 50,00,00,358/- (Rupees Fifty Crores Three Hundred and Fifty-Eight Only).</in-capmkt:DetailsOfConsiderationForAcquisitionEvent><in-capmkt:CostOfAcquisitionOrThePriceAtWhichTheSharesAreAcquired contextRef="OneD" unitRef="INR" decimals="-7">500000000</in-capmkt:CostOfAcquisitionOrThePriceAtWhichTheSharesAreAcquired><in-capmkt:ExistingPercentageOfShareholdingHeldByAcquirer contextRef="OneI" unitRef="pure" decimals="INF">1</in-capmkt:ExistingPercentageOfShareholdingHeldByAcquirer><in-capmkt:PercentageOfAdditionalSharesAcquiredIfExistingHoldingPersists contextRef="OneI" unitRef="pure" decimals="INF">1</in-capmkt:PercentageOfAdditionalSharesAcquiredIfExistingHoldingPersists><in-capmkt:BriefBackgroundAboutTheEntityAcquiredInTermsOfProductsLineOfBusinessAcquired contextRef="OneI">CFCL was incorporated on 22nd March 2022 as a Wholly Owned Subsidiary of CSTL in India and is engaged in the business of manufacture and sale of speciality chemicals.</in-capmkt:BriefBackgroundAboutTheEntityAcquiredInTermsOfProductsLineOfBusinessAcquired><in-capmkt:DescriptionOfFinancialYear contextRef="I_FinancialYear1">2025-2026</in-capmkt:DescriptionOfFinancialYear><in-capmkt:Turnover contextRef="D_FinancialYear1" unitRef="INR" decimals="-7">1660000000</in-capmkt:Turnover><in-capmkt:DescriptionOfFinancialYear contextRef="I_FinancialYear2">2024-2025</in-capmkt:DescriptionOfFinancialYear><in-capmkt:Turnover contextRef="D_FinancialYear2" unitRef="INR" decimals="-7">470000000</in-capmkt:Turnover><in-capmkt:DescriptionOfFinancialYear contextRef="I_FinancialYear3">2023-2024</in-capmkt:DescriptionOfFinancialYear><in-capmkt:Turnover contextRef="D_FinancialYear3" unitRef="INR" decimals="-7">20000000</in-capmkt:Turnover><in-capmkt:CountryInWhichTheAcquiredEntityHasPresence contextRef="OneI">India</in-capmkt:CountryInWhichTheAcquiredEntityHasPresence></xbrli:xbrl>
