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<xbrli:unit id="INR"><xbrli:measure>iso4217:INR</xbrli:measure></xbrli:unit><xbrli:unit id="pure"><xbrli:measure>xbrli:pure</xbrli:measure></xbrli:unit><xbrli:unit id="shares"><xbrli:measure>xbrli:shares</xbrli:measure></xbrli:unit><xbrli:unit id="INRPerShare"><xbrli:divide><xbrli:unitNumerator><xbrli:measure>iso4217:INR</xbrli:measure></xbrli:unitNumerator><xbrli:unitDenominator><xbrli:measure>xbrli:shares</xbrli:measure></xbrli:unitDenominator></xbrli:divide></xbrli:unit>
<in-bse-fin:ScripCode contextRef="OneD">500214</in-bse-fin:ScripCode>
<in-bse-fin:Symbol contextRef="OneD">IONEXCHANG</in-bse-fin:Symbol>
<in-bse-fin:MSEISymbol contextRef="OneD">NOTLISTED</in-bse-fin:MSEISymbol>
<in-bse-fin:NameOfTheCompany contextRef="OneD">ION Exchange (India) Limited</in-bse-fin:NameOfTheCompany>
<in-bse-fin:ClassOfSecurity contextRef="OneD">Equity</in-bse-fin:ClassOfSecurity>
<in-bse-fin:DateOfStartOfFinancialYear contextRef="OneD">2024-04-01</in-bse-fin:DateOfStartOfFinancialYear>
<in-bse-fin:DateOfEndOfFinancialYear contextRef="OneD">2025-03-31</in-bse-fin:DateOfEndOfFinancialYear>
<in-bse-fin:DateOfBoardMeetingWhenFinancialResultsWereApproved contextRef="OneD">2024-08-02</in-bse-fin:DateOfBoardMeetingWhenFinancialResultsWereApproved>
<in-bse-fin:DateOnWhichPriorIntimationOfTheMeetingForConsideringFinancialResultsWasInformedToTheExchange contextRef="OneD">2024-07-19</in-bse-fin:DateOnWhichPriorIntimationOfTheMeetingForConsideringFinancialResultsWasInformedToTheExchange>
<in-bse-fin:DescriptionOfPresentationCurrency contextRef="OneD">INR</in-bse-fin:DescriptionOfPresentationCurrency>
<in-bse-fin:LevelOfRoundingUsedInFinancialStatements contextRef="OneD">Lakhs</in-bse-fin:LevelOfRoundingUsedInFinancialStatements>
<in-bse-fin:ReportingQuarter contextRef="OneD">First quarter</in-bse-fin:ReportingQuarter>
<in-bse-fin:StartTimeOfBoardMeeting contextRef="OneD">11:00:00</in-bse-fin:StartTimeOfBoardMeeting>
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<in-bse-fin:BasicEarningsLossPerShareFromContinuingAndDiscontinuedOperations contextRef="OneD" unitRef="INRPerShare" decimals="INF">3.73</in-bse-fin:BasicEarningsLossPerShareFromContinuingAndDiscontinuedOperations>
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<in-bse-fin:DisclosureOfNotesOnFinancialResultsExplanatoryTextBlock contextRef="OneD">1) The above standalone financial results which are published in accordance with Regulation 33 of the SEBI (Listing Obligations &amp; Disclosure Requirements) Regulations, 2015 ('Listing Regulations')  have been reviewed by the Audit Committee at a meeting held on 2nd August 2024 and approved by the Board of Directors at their meeting held on 2nd August 2024. The financial results are prepared in accordance with the Ind AS prescribed under Section 133 of the Companies Act, 2013 and other recognised accounting practices and policies.      2) The figures of the quarter ended 31st March 2024 are the balancing figures between audited figures in respect of the full financial year and the unaudited year to date figures upto the third quarter ended 31st December 2023, which were subjected to limited review.      3) Earnings per equity share includes Ind AS impact of consolidation of 23,689,390 equity shares of INR 1 each and 46,750 equity shares of 1 each held by IEI Shareholding (Staff Welfare) Trusts and  HMIL Shareholding (Staff Welfare) Trusts respectively.      4) Global Composites And Structurals Limited and Ion Exchange Environment Management Limited has amalgamated with Ion Exchange (India) Limited as per scheme of amalgamation approved by the Mumbai bench of National Company Law Tribunal on 21st February 2024. The scheme has taken effect from the appointed date i.e., 1st April, 2023. Both the above schemes of merger have been accounted under ‘the pooling of interests method’ i.e., in accordance with Appendix C of Ind AS 103 – Business Combinations and comparatives have been restated for the merger from the beginning of the previous year i.e., 1st April 2022.          5) Based on the recommendations of the Nomination and Remuneration Committee and in terms of the provisions of the Companies Act,2013, the Board and the members of the Company have reappointed Mr. Dinesh Sharma (DIN: 00051986) as a Whole-time Director of the Company for a term of 5 years with effect from April 1, 2024.  In accordance with Part I of Schedule V of the Act, being a Non-Resident, the appointment is subject to the approval of the Central Government. An application has been made, providing all the details and documents, to the Central Government. Approval is awaited from the Central Government.</in-bse-fin:DisclosureOfNotesOnFinancialResultsExplanatoryTextBlock>
<in-bse-fin:DescriptionOfOtherExpenses contextRef="OneOperatingExpenses01D">Others</in-bse-fin:DescriptionOfOtherExpenses>
<in-bse-fin:OtherExpenses contextRef="OneOperatingExpenses01D" unitRef="INR" decimals="-5">700800000.00</in-bse-fin:OtherExpenses>
<in-bse-fin:DescriptionOfReportableSegment contextRef="OneReportableSegmentRevenue01D">Chemicals</in-bse-fin:DescriptionOfReportableSegment>
<in-bse-fin:SegmentRevenue contextRef="OneReportableSegmentRevenue01D" unitRef="INR" decimals="-5">1569700000.00</in-bse-fin:SegmentRevenue>
<in-bse-fin:DescriptionOfReportableSegment contextRef="OneReportableSegmentRevenue02D">Consumer Products</in-bse-fin:DescriptionOfReportableSegment>
<in-bse-fin:SegmentRevenue contextRef="OneReportableSegmentRevenue02D" unitRef="INR" decimals="-5">660200000.00</in-bse-fin:SegmentRevenue>
<in-bse-fin:DescriptionOfReportableSegment contextRef="OneReportableSegmentRevenue03D">Engineering</in-bse-fin:DescriptionOfReportableSegment>
<in-bse-fin:SegmentRevenue contextRef="OneReportableSegmentRevenue03D" unitRef="INR" decimals="-5">3144600000.00</in-bse-fin:SegmentRevenue>
<in-bse-fin:DescriptionOfReportableSegment contextRef="OneReportableSegmentRevenue04D">Unallocated</in-bse-fin:DescriptionOfReportableSegment>
<in-bse-fin:SegmentRevenue contextRef="OneReportableSegmentRevenue04D" unitRef="INR" decimals="-5">200000.00</in-bse-fin:SegmentRevenue>
<in-bse-fin:SegmentRevenue contextRef="OneD" unitRef="INR" decimals="-5">5374700000.00</in-bse-fin:SegmentRevenue>
<in-bse-fin:InterSegmentRevenue contextRef="OneD" unitRef="INR" decimals="-5">213800000.00</in-bse-fin:InterSegmentRevenue>
<in-bse-fin:SegmentRevenueFromOperations contextRef="OneD" unitRef="INR" decimals="-5">5160900000.00</in-bse-fin:SegmentRevenueFromOperations>
<in-bse-fin:DescriptionOfReportableSegment contextRef="OneReportableSegmentResults01D">Chemicals</in-bse-fin:DescriptionOfReportableSegment>
<in-bse-fin:SegmentProfitLossBeforeTaxAndFinanceCosts contextRef="OneReportableSegmentResults01D" unitRef="INR" decimals="-5">429900000.00</in-bse-fin:SegmentProfitLossBeforeTaxAndFinanceCosts>
<in-bse-fin:DescriptionOfReportableSegment contextRef="OneReportableSegmentResults02D">Consumer Products</in-bse-fin:DescriptionOfReportableSegment>
<in-bse-fin:SegmentProfitLossBeforeTaxAndFinanceCosts contextRef="OneReportableSegmentResults02D" unitRef="INR" decimals="-5">-34600000.00</in-bse-fin:SegmentProfitLossBeforeTaxAndFinanceCosts>
<in-bse-fin:DescriptionOfReportableSegment contextRef="OneReportableSegmentResults03D">Engineering</in-bse-fin:DescriptionOfReportableSegment>
<in-bse-fin:SegmentProfitLossBeforeTaxAndFinanceCosts contextRef="OneReportableSegmentResults03D" unitRef="INR" decimals="-5">223800000.00</in-bse-fin:SegmentProfitLossBeforeTaxAndFinanceCosts>
<in-bse-fin:DescriptionOfReportableSegment contextRef="OneReportableSegmentResults04D">Unallocated</in-bse-fin:DescriptionOfReportableSegment>
<in-bse-fin:SegmentProfitLossBeforeTaxAndFinanceCosts contextRef="OneReportableSegmentResults04D" unitRef="INR" decimals="-5">0.00</in-bse-fin:SegmentProfitLossBeforeTaxAndFinanceCosts>
<in-bse-fin:SegmentProfitLossBeforeTaxAndFinanceCosts contextRef="OneD" unitRef="INR" decimals="-5">619100000.00</in-bse-fin:SegmentProfitLossBeforeTaxAndFinanceCosts>
<in-bse-fin:SegmentFinanceCosts contextRef="OneD" unitRef="INR" decimals="-5">16600000.00</in-bse-fin:SegmentFinanceCosts>
<in-bse-fin:OtherUnallocableExpenditureNetOffUnAllocableIncome contextRef="OneD" unitRef="INR" decimals="-5">-19500000.00</in-bse-fin:OtherUnallocableExpenditureNetOffUnAllocableIncome>
<in-bse-fin:DisclosureOfNotesOnSegmentsExplanatoryTextBlock contextRef="OneD">1) Segments have been identified in line with the Ind AS 108 'Operating Segment'.      2) Global Composites And Structurals Limited and Ion Exchange Environment Management Limited has amalgamated with Ion Exchange (India) Limited as per scheme of amalgamation approved by the Mumbai bench of National Company Law Tribunal on 21st February 2024. The scheme has taken effect from the appointed date i.e., 1st April, 2023. Both the above schemes of merger have been accounted under ‘the pooling of interests method’ i.e., in accordance with Appendix C of Ind AS 103 – Business Combinations and comparatives have been restated for the merger from the beginning of the previous year i.e., 1st April 2022.       3) The figures of the quarter ended 31st March 2024 are the balancing figures between audited figures in respect of the full financial year and the unaudited year to date figures upto the third quarter ended 31st December 2023, which were subjected to limited review.</in-bse-fin:DisclosureOfNotesOnSegmentsExplanatoryTextBlock>
<in-bse-fin:SegmentProfitBeforeTax contextRef="OneD" unitRef="INR" decimals="-5">622000000.00</in-bse-fin:SegmentProfitBeforeTax>
<in-bse-fin:DescriptionOfReportableSegment contextRef="OneReportableSegmentAssets01D">Chemicals</in-bse-fin:DescriptionOfReportableSegment>
<in-bse-fin:SegmentAssets contextRef="OneReportableSegmentAssets01D" unitRef="INR" decimals="-5">4245200000.00</in-bse-fin:SegmentAssets>
<in-bse-fin:DescriptionOfReportableSegment contextRef="OneReportableSegmentAssets02D">Consumer Products</in-bse-fin:DescriptionOfReportableSegment>
<in-bse-fin:SegmentAssets contextRef="OneReportableSegmentAssets02D" unitRef="INR" decimals="-5">644900000.00</in-bse-fin:SegmentAssets>
<in-bse-fin:DescriptionOfReportableSegment contextRef="OneReportableSegmentAssets03D">Engineering</in-bse-fin:DescriptionOfReportableSegment>
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<in-bse-fin:DescriptionOfReportableSegment contextRef="OneReportableSegmentAssets04D">Unallocated</in-bse-fin:DescriptionOfReportableSegment>
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<in-bse-fin:SegmentAssets contextRef="OneD" unitRef="INR" decimals="-5">24074600000.00</in-bse-fin:SegmentAssets>
<in-bse-fin:DescriptionOfReportableSegment contextRef="OneReportableSegmentLiabilities01D">Chemicals</in-bse-fin:DescriptionOfReportableSegment>
<in-bse-fin:SegmentLiabilities contextRef="OneReportableSegmentLiabilities01I" unitRef="INR" decimals="-5">1790900000.00</in-bse-fin:SegmentLiabilities>
<in-bse-fin:DescriptionOfReportableSegment contextRef="OneReportableSegmentLiabilities02D">Consumer Products</in-bse-fin:DescriptionOfReportableSegment>
<in-bse-fin:SegmentLiabilities contextRef="OneReportableSegmentLiabilities02I" unitRef="INR" decimals="-5">580600000.00</in-bse-fin:SegmentLiabilities>
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<in-bse-fin:DescriptionOfReportableSegment contextRef="OneReportableSegmentLiabilities04D">Unallocated</in-bse-fin:DescriptionOfReportableSegment>
<in-bse-fin:SegmentLiabilities contextRef="OneReportableSegmentLiabilities04I" unitRef="INR" decimals="-5">1431600000.00</in-bse-fin:SegmentLiabilities>
<in-bse-fin:SegmentLiabilities contextRef="OneI" unitRef="INR" decimals="-5">12874900000.00</in-bse-fin:SegmentLiabilities>
<in-bse-fin:DescriptionOfItemThatWillNotBeReclassifiedToProfitAndLoss contextRef="OneItemsThatWillNotBeReclassifiedToProfitAndLoss01D">Re measurement of defined benefit plans</in-bse-fin:DescriptionOfItemThatWillNotBeReclassifiedToProfitAndLoss>
<in-bse-fin:AmountOfItemThatWillNotBeReclassifiedToProfitAndLoss contextRef="OneItemsThatWillNotBeReclassifiedToProfitAndLoss01D" unitRef="INR" decimals="-5">-3000000.00</in-bse-fin:AmountOfItemThatWillNotBeReclassifiedToProfitAndLoss>
<in-bse-fin:AmountOfItemThatWillNotBeReclassifiedToProfitAndLoss contextRef="OneD" unitRef="INR" decimals="-5">-3000000.00</in-bse-fin:AmountOfItemThatWillNotBeReclassifiedToProfitAndLoss>
<in-bse-fin:IncomeTaxRelatingToItmesThatWillNotBeReclassifiedToProfitOrLoss contextRef="OneD" unitRef="INR" decimals="-5">-700000.00</in-bse-fin:IncomeTaxRelatingToItmesThatWillNotBeReclassifiedToProfitOrLoss>
<in-bse-fin:IncomeTaxRelatingToItmesThatWillBeReclassifiedToProfitOrLoss contextRef="OneD" unitRef="INR" decimals="-5">0.00</in-bse-fin:IncomeTaxRelatingToItmesThatWillBeReclassifiedToProfitOrLoss>
</xbrli:xbrl>