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<!--REG30PARAB V1.0 (01-06-2026)-->
<xbrli:xbrl xmlns:in-capmkt="http://www.sebi.gov.in/xbrl/2026-04-30/in-capmkt" xmlns:in-capmkt-ent="http://www.sebi.gov.in/xbrl/Regulation_30_Para_B_Of_Part_A_Of_Schedule_III/2026-04-30/in-capmkt/in-capmkt-ent" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:nonnum="http://www.xbrl.org/dtr/type/non-numeric" xmlns:in-capmkt-types="http://www.sebi.gov.in/xbrl/2026-04-30/in-capmkt-types" 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.w3.org/1999/xlink"><link:schemaRef xlink:type="simple" xlink:href="in-capmkt-ent-2026-04-30.xsd"/><xbrli:context id="MainI"><xbrli:entity><xbrli:identifier scheme="http://www.sebi.gov.in/in-capmkt/NSESymbol">ISGEC</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:instant>2026-10-08</xbrli:instant></xbrli:period></xbrli:context><xbrli:unit id="INR"><xbrli:measure>iso4217:INR</xbrli:measure></xbrli:unit><in-capmkt:NSESymbol contextRef="MainI">ISGEC</in-capmkt:NSESymbol><in-capmkt:NameOfTheCompany contextRef="MainI">Isgec Heavy Engineering Limited</in-capmkt:NameOfTheCompany><in-capmkt:ScripCode contextRef="MainI">533033</in-capmkt:ScripCode><in-capmkt:MSEISymbol contextRef="MainI">NOTLISTED</in-capmkt:MSEISymbol><in-capmkt:ISIN contextRef="MainI">INE858B01029</in-capmkt:ISIN><in-capmkt:TypeOfEventAsPerRegulation30ParaBOfPartAOfScheduleIII contextRef="MainI">Giving of guarantees or indemnity (Sub-para 11-Para B)</in-capmkt:TypeOfEventAsPerRegulation30ParaBOfPartAOfScheduleIII><in-capmkt:TypeOfAnnouncementAsPerRegulation30ParaBOfPartAOfScheduleIII contextRef="MainI">New</in-capmkt:TypeOfAnnouncementAsPerRegulation30ParaBOfPartAOfScheduleIII><in-capmkt:WhetherEventOrInformationDisclosedIsAnOutcomeOfTheBoardMeeting contextRef="MainI">false</in-capmkt:WhetherEventOrInformationDisclosedIsAnOutcomeOfTheBoardMeeting><in-capmkt:DateOfOccurrenceOfEventOrInformation contextRef="MainI">2026-10-08</in-capmkt:DateOfOccurrenceOfEventOrInformation><in-capmkt:TimeOfOccurrenceOfEventOrInformation contextRef="MainI">16:00:00</in-capmkt:TimeOfOccurrenceOfEventOrInformation><in-capmkt:DateOfReport contextRef="MainI">2026-10-08</in-capmkt:DateOfReport><in-capmkt:EventTypeOfGuaranteeOrIndemnityOrSurety contextRef="MainI">Giving guarantees</in-capmkt:EventTypeOfGuaranteeOrIndemnityOrSurety><in-capmkt:NameOfPartyForWhomGuaranteeOrIndemnityOrSuretyWasGiven contextRef="MainI">Isgec Titan Metal Fabricators Private Limited (Subsidiary and Joint Venture Company</in-capmkt:NameOfPartyForWhomGuaranteeOrIndemnityOrSuretyWasGiven><in-capmkt:WhetherThePromoterOrPromoterGroupOrGroupCompaniesHaveAnyInterestInGuaranteeOrIndemnityOrSuretyTransaction contextRef="MainI">false</in-capmkt:WhetherThePromoterOrPromoterGroupOrGroupCompaniesHaveAnyInterestInGuaranteeOrIndemnityOrSuretyTransaction><in-capmkt:BriefDetailsOfGuaranteeOrIndemnityOrSurety contextRef="MainI">Based on the Board's approval dated May 27, 2026, the Company has issued Letter of Comforts for a cumulative amount of Rs. 61 crores in favour of various banks of the Company's subsidiary and joint venture company, Isgec Titan Metal Fabricators Private Limited.</in-capmkt:BriefDetailsOfGuaranteeOrIndemnityOrSurety><in-capmkt:SignificantTermsAndConditionsOfGuaranteeOrIndemnityOrSurety contextRef="MainI">In the event Isgec Titan Metal Fabricators Private Limited defaults in any of its loan's obligations, the Company shall indemnify the said banks.</in-capmkt:SignificantTermsAndConditionsOfGuaranteeOrIndemnityOrSurety><in-capmkt:AmountOfGuaranteeOrIndemnityOrSurety contextRef="MainI" unitRef="INR" decimals="0">610000000</in-capmkt:AmountOfGuaranteeOrIndemnityOrSurety><in-capmkt:ImpactOfGuaranteeOrIndemnityOrSuretyOnListedEntity contextRef="MainI">Letter of Comforts shall not have any immediate financial impact on the Company unless subsidiary and joint venture company, Isgec Titan Metal Fabricators Private Limited, defaults in repayment of its loan's obligations.</in-capmkt:ImpactOfGuaranteeOrIndemnityOrSuretyOnListedEntity></xbrli:xbrl>
