<?xml version="1.0" encoding="UTF-8"?>
<xbrli:xbrl xmlns:in-bse-fin="http://www.bseindia.com/xbrl/fin/2020-03-31/in-bse-fin" xmlns:in-bse-fin-roles="http://www.bseindia.com/xbrl/fin/2020-03-31/in-bse-fin-roles" xmlns:in-bse-fin-ent="http://www.bseindia.com/xbrl/fin/2020-03-31/in-bse-fin/in-bse-fin-ent" xmlns:in-bse-fin-type="http://www.bseindia.com/xbrl/fin/2020-03-31/in-bse-fin-types" 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="Ind-AS_entry_point_2020-03-31.xsd"/>
<xbrli:context id="OneD"><xbrli:entity><xbrli:identifier scheme="http://www.nseindia.com/NSESymbol">ONGC</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2023-04-01</xbrli:startDate><xbrli:endDate>2023-06-30</xbrli:endDate></xbrli:period></xbrli:context>
<xbrli:context id="OneOperatingExpenses01D"><xbrli:entity><xbrli:identifier scheme="http://www.nseindia.com/NSESymbol">ONGC</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2023-04-01</xbrli:startDate><xbrli:endDate>2023-06-30</xbrli:endDate></xbrli:period><xbrli:scenario><xbrldi:explicitMember dimension="in-bse-fin:DetailsOfOtherExpensesAxis">in-bse-fin:OneOperatingExpenses01Member</xbrldi:explicitMember></xbrli:scenario></xbrli:context>
<xbrli:context id="OneOperatingExpenses02D"><xbrli:entity><xbrli:identifier scheme="http://www.nseindia.com/NSESymbol">ONGC</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2023-04-01</xbrli:startDate><xbrli:endDate>2023-06-30</xbrli:endDate></xbrli:period><xbrli:scenario><xbrldi:explicitMember dimension="in-bse-fin:DetailsOfOtherExpensesAxis">in-bse-fin:OneOperatingExpenses02Member</xbrldi:explicitMember></xbrli:scenario></xbrli:context>
<xbrli:context id="OneOperatingExpenses03D"><xbrli:entity><xbrli:identifier scheme="http://www.nseindia.com/NSESymbol">ONGC</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2023-04-01</xbrli:startDate><xbrli:endDate>2023-06-30</xbrli:endDate></xbrli:period><xbrli:scenario><xbrldi:explicitMember dimension="in-bse-fin:DetailsOfOtherExpensesAxis">in-bse-fin:OneOperatingExpenses03Member</xbrldi:explicitMember></xbrli:scenario></xbrli:context>
<xbrli:context id="OneOperatingExpenses04D"><xbrli:entity><xbrli:identifier scheme="http://www.nseindia.com/NSESymbol">ONGC</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2023-04-01</xbrli:startDate><xbrli:endDate>2023-06-30</xbrli:endDate></xbrli:period><xbrli:scenario><xbrldi:explicitMember dimension="in-bse-fin:DetailsOfOtherExpensesAxis">in-bse-fin:OneOperatingExpenses04Member</xbrldi:explicitMember></xbrli:scenario></xbrli:context>
<xbrli:context id="OneI"><xbrli:entity><xbrli:identifier scheme="http://www.nseindia.com/NSESymbol">ONGC</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:instant>2023-06-30</xbrli:instant></xbrli:period></xbrli:context>
<xbrli:context id="OneReportableSegmentRevenue01D"><xbrli:entity><xbrli:identifier scheme="http://www.nseindia.com/NSESymbol">ONGC</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2023-04-01</xbrli:startDate><xbrli:endDate>2023-06-30</xbrli:endDate></xbrli:period><xbrli:scenario><xbrldi:explicitMember dimension="in-bse-fin:ReportableSegmentsAxis">in-bse-fin:OneReportableSegmentRevenue01Member</xbrldi:explicitMember></xbrli:scenario></xbrli:context>
<xbrli:context id="OneReportableSegmentRevenue02D"><xbrli:entity><xbrli:identifier scheme="http://www.nseindia.com/NSESymbol">ONGC</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2023-04-01</xbrli:startDate><xbrli:endDate>2023-06-30</xbrli:endDate></xbrli:period><xbrli:scenario><xbrldi:explicitMember dimension="in-bse-fin:ReportableSegmentsAxis">in-bse-fin:OneReportableSegmentRevenue02Member</xbrldi:explicitMember></xbrli:scenario></xbrli:context>
<xbrli:context id="OneReportableSegmentResults01D"><xbrli:entity><xbrli:identifier scheme="http://www.nseindia.com/NSESymbol">ONGC</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2023-04-01</xbrli:startDate><xbrli:endDate>2023-06-30</xbrli:endDate></xbrli:period><xbrli:scenario><xbrldi:explicitMember dimension="in-bse-fin:ReportableSegmentsFinanceCostsAxis">in-bse-fin:OneReportableSegmentResults01Member</xbrldi:explicitMember></xbrli:scenario></xbrli:context>
<xbrli:context id="OneReportableSegmentResults02D"><xbrli:entity><xbrli:identifier scheme="http://www.nseindia.com/NSESymbol">ONGC</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2023-04-01</xbrli:startDate><xbrli:endDate>2023-06-30</xbrli:endDate></xbrli:period><xbrli:scenario><xbrldi:explicitMember dimension="in-bse-fin:ReportableSegmentsFinanceCostsAxis">in-bse-fin:OneReportableSegmentResults02Member</xbrldi:explicitMember></xbrli:scenario></xbrli:context>
<xbrli:context id="OneReportableSegmentAssets01D"><xbrli:entity><xbrli:identifier scheme="http://www.nseindia.com/NSESymbol">ONGC</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2023-04-01</xbrli:startDate><xbrli:endDate>2023-06-30</xbrli:endDate></xbrli:period><xbrli:scenario><xbrldi:explicitMember dimension="in-bse-fin:ReportableSegmentAssetsAxis">in-bse-fin:OneReportableSegmentAssets01Member</xbrldi:explicitMember></xbrli:scenario></xbrli:context>
<xbrli:context id="OneReportableSegmentAssets02D"><xbrli:entity><xbrli:identifier scheme="http://www.nseindia.com/NSESymbol">ONGC</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2023-04-01</xbrli:startDate><xbrli:endDate>2023-06-30</xbrli:endDate></xbrli:period><xbrli:scenario><xbrldi:explicitMember dimension="in-bse-fin:ReportableSegmentAssetsAxis">in-bse-fin:OneReportableSegmentAssets02Member</xbrldi:explicitMember></xbrli:scenario></xbrli:context>
<xbrli:context id="OneReportableSegmentLiabilities01D"><xbrli:entity><xbrli:identifier scheme="http://www.nseindia.com/NSESymbol">ONGC</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2023-04-01</xbrli:startDate><xbrli:endDate>2023-06-30</xbrli:endDate></xbrli:period><xbrli:scenario><xbrldi:explicitMember dimension="in-bse-fin:ReportableSegmentLiabilitiesAxis">in-bse-fin:OneReportableSegmentLiabilities01Member</xbrldi:explicitMember></xbrli:scenario></xbrli:context>
<xbrli:context id="OneReportableSegmentLiabilities01I"><xbrli:entity><xbrli:identifier scheme="http://www.nseindia.com/NSESymbol">ONGC</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:instant>2023-06-30</xbrli:instant></xbrli:period><xbrli:scenario><xbrldi:explicitMember dimension="in-bse-fin:ReportableSegmentLiabilitiesAxis">in-bse-fin:OneReportableSegmentLiabilities01Member</xbrldi:explicitMember></xbrli:scenario></xbrli:context>
<xbrli:context id="OneReportableSegmentLiabilities02D"><xbrli:entity><xbrli:identifier scheme="http://www.nseindia.com/NSESymbol">ONGC</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2023-04-01</xbrli:startDate><xbrli:endDate>2023-06-30</xbrli:endDate></xbrli:period><xbrli:scenario><xbrldi:explicitMember dimension="in-bse-fin:ReportableSegmentLiabilitiesAxis">in-bse-fin:OneReportableSegmentLiabilities02Member</xbrldi:explicitMember></xbrli:scenario></xbrli:context>
<xbrli:context id="OneReportableSegmentLiabilities02I"><xbrli:entity><xbrli:identifier scheme="http://www.nseindia.com/NSESymbol">ONGC</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:instant>2023-06-30</xbrli:instant></xbrli:period><xbrli:scenario><xbrldi:explicitMember dimension="in-bse-fin:ReportableSegmentLiabilitiesAxis">in-bse-fin:OneReportableSegmentLiabilities02Member</xbrldi:explicitMember></xbrli:scenario></xbrli:context>
<xbrli:context id="OneItemsThatWillNotBeReclassifiedToProfitAndLoss01D"><xbrli:entity><xbrli:identifier scheme="http://www.nseindia.com/NSESymbol">ONGC</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2023-04-01</xbrli:startDate><xbrli:endDate>2023-06-30</xbrli:endDate></xbrli:period><xbrli:scenario><xbrldi:typedMember dimension="in-bse-fin:ItemsThatWillNotBeReclassifiedToProfitAndLossAxis"><ItemsThatWillNotBeReclassifiedToProfitAndLossDomain>in-bse-fin:OneItemsThatWillNotBeReclassifiedToProfitAndLoss01Member</ItemsThatWillNotBeReclassifiedToProfitAndLossDomain></xbrldi:typedMember></xbrli:scenario></xbrli:context>
<xbrli:context id="OneItemsThatWillNotBeReclassifiedToProfitAndLoss02D"><xbrli:entity><xbrli:identifier scheme="http://www.nseindia.com/NSESymbol">ONGC</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2023-04-01</xbrli:startDate><xbrli:endDate>2023-06-30</xbrli:endDate></xbrli:period><xbrli:scenario><xbrldi:typedMember dimension="in-bse-fin:ItemsThatWillNotBeReclassifiedToProfitAndLossAxis"><ItemsThatWillNotBeReclassifiedToProfitAndLossDomain>in-bse-fin:OneItemsThatWillNotBeReclassifiedToProfitAndLoss02Member</ItemsThatWillNotBeReclassifiedToProfitAndLossDomain></xbrldi:typedMember></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><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">500312</in-bse-fin:ScripCode>
<in-bse-fin:Symbol contextRef="OneD">ONGC</in-bse-fin:Symbol>
<in-bse-fin:MSEISymbol contextRef="OneD">NOTLISTED</in-bse-fin:MSEISymbol>
<in-bse-fin:NameOfTheCompany contextRef="OneD">Oil &amp; Natural Gas Corporation Limited</in-bse-fin:NameOfTheCompany>
<in-bse-fin:ClassOfSecurity contextRef="OneD">Equity</in-bse-fin:ClassOfSecurity>
<in-bse-fin:DateOfStartOfFinancialYear contextRef="OneD">2023-04-01</in-bse-fin:DateOfStartOfFinancialYear>
<in-bse-fin:DateOfEndOfFinancialYear contextRef="OneD">2024-03-31</in-bse-fin:DateOfEndOfFinancialYear>
<in-bse-fin:DateOfBoardMeetingWhenFinancialResultsWereApproved contextRef="OneD">2023-08-11</in-bse-fin:DateOfBoardMeetingWhenFinancialResultsWereApproved>
<in-bse-fin:DateOnWhichPriorIntimationOfTheMeetingForConsideringFinancialResultsWasInformedToTheExchange contextRef="OneD">2023-08-02</in-bse-fin:DateOnWhichPriorIntimationOfTheMeetingForConsideringFinancialResultsWasInformedToTheExchange>
<in-bse-fin:DescriptionOfPresentationCurrency contextRef="OneD">INR</in-bse-fin:DescriptionOfPresentationCurrency>
<in-bse-fin:LevelOfRoundingUsedInFinancialStatements contextRef="OneD">Crores</in-bse-fin:LevelOfRoundingUsedInFinancialStatements>
<in-bse-fin:ReportingQuarter contextRef="OneD">First quarter</in-bse-fin:ReportingQuarter>
<in-bse-fin:StartTimeOfBoardMeeting contextRef="OneD">17:45:00</in-bse-fin:StartTimeOfBoardMeeting>
<in-bse-fin:EndTimeOfBoardMeeting contextRef="OneD">20:30:00</in-bse-fin:EndTimeOfBoardMeeting>
<in-bse-fin:DateOfStartOfBoardMeeting contextRef="OneD">2023-08-11</in-bse-fin:DateOfStartOfBoardMeeting>
<in-bse-fin:DateOfEndOfBoardMeeting contextRef="OneD">2023-08-11</in-bse-fin:DateOfEndOfBoardMeeting>
<in-bse-fin:DeclarationOfUnmodifiedOpinionOrStatementOnImpactOfAuditQualification contextRef="OneD">Not applicable</in-bse-fin:DeclarationOfUnmodifiedOpinionOrStatementOnImpactOfAuditQualification>
<in-bse-fin:IsCompanyReportingMultisegmentOrSingleSegment contextRef="OneD">Geographical</in-bse-fin:IsCompanyReportingMultisegmentOrSingleSegment>
<in-bse-fin:DateOfStartOfReportingPeriod contextRef="OneD">2023-04-01</in-bse-fin:DateOfStartOfReportingPeriod>
<in-bse-fin:DateOfEndOfReportingPeriod contextRef="OneD">2023-06-30</in-bse-fin:DateOfEndOfReportingPeriod>
<in-bse-fin:WhetherResultsAreAuditedOrUnaudited contextRef="OneD">Unaudited</in-bse-fin:WhetherResultsAreAuditedOrUnaudited>
<in-bse-fin:NatureOfReportStandaloneConsolidated contextRef="OneD">Standalone</in-bse-fin:NatureOfReportStandaloneConsolidated>
<in-bse-fin:RevenueFromOperations contextRef="OneD" unitRef="INR" decimals="-7">338143300000.00</in-bse-fin:RevenueFromOperations>
<in-bse-fin:OtherIncome contextRef="OneD" unitRef="INR" decimals="-7">16118500000.00</in-bse-fin:OtherIncome>
<in-bse-fin:Income contextRef="OneD" unitRef="INR" decimals="-7">354261800000.00</in-bse-fin:Income>
<in-bse-fin:CostOfMaterialsConsumed contextRef="OneD" unitRef="INR" decimals="-7">10094200000.00</in-bse-fin:CostOfMaterialsConsumed>
<in-bse-fin:PurchasesOfStockInTrade contextRef="OneD" unitRef="INR" decimals="-7">0.00</in-bse-fin:PurchasesOfStockInTrade>
<in-bse-fin:ChangesInInventoriesOfFinishedGoodsWorkInProgressAndStockInTrade contextRef="OneD" unitRef="INR" decimals="-7">2120000000.00</in-bse-fin:ChangesInInventoriesOfFinishedGoodsWorkInProgressAndStockInTrade>
<in-bse-fin:EmployeeBenefitExpense contextRef="OneD" unitRef="INR" decimals="-7">7219500000.00</in-bse-fin:EmployeeBenefitExpense>
<in-bse-fin:FinanceCosts contextRef="OneD" unitRef="INR" decimals="-7">10077000000.00</in-bse-fin:FinanceCosts>
<in-bse-fin:DepreciationDepletionAndAmortisationExpense contextRef="OneD" unitRef="INR" decimals="-7">49911700000.00</in-bse-fin:DepreciationDepletionAndAmortisationExpense>
<in-bse-fin:OtherExpenses contextRef="OneD" unitRef="INR" decimals="-7">141233600000.00</in-bse-fin:OtherExpenses>
<in-bse-fin:Expenses contextRef="OneD" unitRef="INR" decimals="-7">220656000000.00</in-bse-fin:Expenses>
<in-bse-fin:ProfitBeforeExceptionalItemsAndTax contextRef="OneD" unitRef="INR" decimals="-7">133605800000.00</in-bse-fin:ProfitBeforeExceptionalItemsAndTax>
<in-bse-fin:ExceptionalItemsBeforeTax contextRef="OneD" unitRef="INR" decimals="-7">0.00</in-bse-fin:ExceptionalItemsBeforeTax>
<in-bse-fin:ProfitBeforeTax contextRef="OneD" unitRef="INR" decimals="-7">133605800000.00</in-bse-fin:ProfitBeforeTax>
<in-bse-fin:CurrentTax contextRef="OneD" unitRef="INR" decimals="-7">33321200000.00</in-bse-fin:CurrentTax>
<in-bse-fin:DeferredTax contextRef="OneD" unitRef="INR" decimals="-7">134200000.00</in-bse-fin:DeferredTax>
<in-bse-fin:TaxExpense contextRef="OneD" unitRef="INR" decimals="-7">33455400000.00</in-bse-fin:TaxExpense>
<in-bse-fin:NetMovementInRegulatoryDeferralAccountBalancesRelatedToProfitOrLossAndTheRelatedDeferredTaxMovement contextRef="OneD" unitRef="INR" decimals="-7">0.00</in-bse-fin:NetMovementInRegulatoryDeferralAccountBalancesRelatedToProfitOrLossAndTheRelatedDeferredTaxMovement>
<in-bse-fin:ProfitLossForPeriodFromContinuingOperations contextRef="OneD" unitRef="INR" decimals="-7">100150400000.00</in-bse-fin:ProfitLossForPeriodFromContinuingOperations>
<in-bse-fin:ProfitLossFromDiscontinuedOperationsBeforeTax contextRef="OneD" unitRef="INR" decimals="-7">0.00</in-bse-fin:ProfitLossFromDiscontinuedOperationsBeforeTax>
<in-bse-fin:TaxExpenseOfDiscontinuedOperations contextRef="OneD" unitRef="INR" decimals="-7">0.00</in-bse-fin:TaxExpenseOfDiscontinuedOperations>
<in-bse-fin:ProfitLossFromDiscontinuedOperationsAfterTax contextRef="OneD" unitRef="INR" decimals="-7">0.00</in-bse-fin:ProfitLossFromDiscontinuedOperationsAfterTax>
<in-bse-fin:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod contextRef="OneD" unitRef="INR" decimals="-7">0.00</in-bse-fin:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod>
<in-bse-fin:ProfitLossForPeriod contextRef="OneD" unitRef="INR" decimals="-7">100150400000.00</in-bse-fin:ProfitLossForPeriod>
<in-bse-fin:OtherComprehensiveIncomeNetOfTaxes contextRef="OneD" unitRef="INR" decimals="-7">24373500000.00</in-bse-fin:OtherComprehensiveIncomeNetOfTaxes>
<in-bse-fin:ComprehensiveIncomeForThePeriod contextRef="OneD" unitRef="INR" decimals="-7">124523900000.00</in-bse-fin:ComprehensiveIncomeForThePeriod>
<in-bse-fin:ComprehensiveIncomeForThePeriodAttributableToOwnersOfParent contextRef="OneD" unitRef="INR" decimals="-7">0.00</in-bse-fin:ComprehensiveIncomeForThePeriodAttributableToOwnersOfParent>
<in-bse-fin:ComprehensiveIncomeForThePeriodAttributableToOwnersOfParentNonControllingInterests contextRef="OneD" unitRef="INR" decimals="-7">0.00</in-bse-fin:ComprehensiveIncomeForThePeriodAttributableToOwnersOfParentNonControllingInterests>
<in-bse-fin:PaidUpValueOfEquityShareCapital contextRef="OneD" unitRef="INR" decimals="-7">62901400000.00</in-bse-fin:PaidUpValueOfEquityShareCapital>
<in-bse-fin:FaceValueOfEquityShareCapital contextRef="OneD" unitRef="INRPerShare" decimals="INF">5</in-bse-fin:FaceValueOfEquityShareCapital>
<in-bse-fin:BasicEarningsLossPerShareFromContinuingOperations contextRef="OneD" unitRef="INRPerShare" decimals="INF">7.96</in-bse-fin:BasicEarningsLossPerShareFromContinuingOperations>
<in-bse-fin:DilutedEarningsLossPerShareFromContinuingOperations contextRef="OneD" unitRef="INRPerShare" decimals="INF">7.96</in-bse-fin:DilutedEarningsLossPerShareFromContinuingOperations>
<in-bse-fin:BasicEarningsLossPerShareFromDiscontinuedOperations contextRef="OneD" unitRef="INRPerShare" decimals="INF">0.00</in-bse-fin:BasicEarningsLossPerShareFromDiscontinuedOperations>
<in-bse-fin:DilutedEarningsLossPerShareFromDiscontinuedOperations contextRef="OneD" unitRef="INRPerShare" decimals="INF">0.00</in-bse-fin:DilutedEarningsLossPerShareFromDiscontinuedOperations>
<in-bse-fin:BasicEarningsLossPerShareFromContinuingAndDiscontinuedOperations contextRef="OneD" unitRef="INRPerShare" decimals="INF">7.96</in-bse-fin:BasicEarningsLossPerShareFromContinuingAndDiscontinuedOperations>
<in-bse-fin:DilutedEarningsLossPerShareFromContinuingAndDiscontinuedOperations contextRef="OneD" unitRef="INRPerShare" decimals="INF">7.96</in-bse-fin:DilutedEarningsLossPerShareFromContinuingAndDiscontinuedOperations>
<in-bse-fin:DebtEquityRatio contextRef="OneD" unitRef="pure" decimals="INF">0.00</in-bse-fin:DebtEquityRatio>
<in-bse-fin:DisclosureOfNotesOnFinancialResultsExplanatoryTextBlock contextRef="OneD">* Represents consumption of raw materials and stores &amp; spares.    ** Employee benefits expense shown above is net of allocation to different activities.   $ comprises non-current and current borrowings. # Debenture Redemption Reserve is not required to be created by the company as per Companies (Share Capital and Debentures) Rules, 2014, as amended.       Debt Service coverage ratio is 180.570   Interest Service Coverage Ratio is 180.570</in-bse-fin:DisclosureOfNotesOnFinancialResultsExplanatoryTextBlock>
<in-bse-fin:DescriptionOfOtherExpenses contextRef="OneOperatingExpenses01D">Other expenses</in-bse-fin:DescriptionOfOtherExpenses>
<in-bse-fin:OtherExpenses contextRef="OneOperatingExpenses01D" unitRef="INR" decimals="-7">49662100000.00</in-bse-fin:OtherExpenses>
<in-bse-fin:DescriptionOfOtherExpenses contextRef="OneOperatingExpenses02D">Statutory levies</in-bse-fin:DescriptionOfOtherExpenses>
<in-bse-fin:OtherExpenses contextRef="OneOperatingExpenses02D" unitRef="INR" decimals="-7">74513300000.00</in-bse-fin:OtherExpenses>
<in-bse-fin:DescriptionOfOtherExpenses contextRef="OneOperatingExpenses03D">a.       Survey Costs</in-bse-fin:DescriptionOfOtherExpenses>
<in-bse-fin:OtherExpenses contextRef="OneOperatingExpenses03D" unitRef="INR" decimals="-7">12067900000.00</in-bse-fin:OtherExpenses>
<in-bse-fin:DescriptionOfOtherExpenses contextRef="OneOperatingExpenses04D">b.       Exploratory well Costs</in-bse-fin:DescriptionOfOtherExpenses>
<in-bse-fin:OtherExpenses contextRef="OneOperatingExpenses04D" unitRef="INR" decimals="-7">4990300000.00</in-bse-fin:OtherExpenses>
<in-bse-fin:DescriptionOfReportableSegment contextRef="OneReportableSegmentRevenue01D">Offshore</in-bse-fin:DescriptionOfReportableSegment>
<in-bse-fin:SegmentRevenue contextRef="OneReportableSegmentRevenue01D" unitRef="INR" decimals="-7">230768600000.00</in-bse-fin:SegmentRevenue>
<in-bse-fin:DescriptionOfReportableSegment contextRef="OneReportableSegmentRevenue02D">Onshore</in-bse-fin:DescriptionOfReportableSegment>
<in-bse-fin:SegmentRevenue contextRef="OneReportableSegmentRevenue02D" unitRef="INR" decimals="-7">107374700000.00</in-bse-fin:SegmentRevenue>
<in-bse-fin:SegmentRevenue contextRef="OneD" unitRef="INR" decimals="-7">338143300000.00</in-bse-fin:SegmentRevenue>
<in-bse-fin:InterSegmentRevenue contextRef="OneD" unitRef="INR" decimals="-7">0.00</in-bse-fin:InterSegmentRevenue>
<in-bse-fin:SegmentRevenueFromOperations contextRef="OneD" unitRef="INR" decimals="-7">338143300000.00</in-bse-fin:SegmentRevenueFromOperations>
<in-bse-fin:DescriptionOfReportableSegment contextRef="OneReportableSegmentResults01D">Offshore</in-bse-fin:DescriptionOfReportableSegment>
<in-bse-fin:SegmentProfitLossBeforeTaxAndFinanceCosts contextRef="OneReportableSegmentResults01D" unitRef="INR" decimals="-7">111516300000.00</in-bse-fin:SegmentProfitLossBeforeTaxAndFinanceCosts>
<in-bse-fin:DescriptionOfReportableSegment contextRef="OneReportableSegmentResults02D">Onshore</in-bse-fin:DescriptionOfReportableSegment>
<in-bse-fin:SegmentProfitLossBeforeTaxAndFinanceCosts contextRef="OneReportableSegmentResults02D" unitRef="INR" decimals="-7">23782700000.00</in-bse-fin:SegmentProfitLossBeforeTaxAndFinanceCosts>
<in-bse-fin:SegmentProfitLossBeforeTaxAndFinanceCosts contextRef="OneD" unitRef="INR" decimals="-7">135299000000.00</in-bse-fin:SegmentProfitLossBeforeTaxAndFinanceCosts>
<in-bse-fin:SegmentFinanceCosts contextRef="OneD" unitRef="INR" decimals="-7">10077000000.00</in-bse-fin:SegmentFinanceCosts>
<in-bse-fin:OtherUnallocableExpenditureNetOffUnAllocableIncome contextRef="OneD" unitRef="INR" decimals="-7">-8383800000.00</in-bse-fin:OtherUnallocableExpenditureNetOffUnAllocableIncome>
<in-bse-fin:DisclosureOfNotesOnSegmentsExplanatoryTextBlock contextRef="OneD">Above segment information has been classified based on Geographical Segment.</in-bse-fin:DisclosureOfNotesOnSegmentsExplanatoryTextBlock>
<in-bse-fin:SegmentProfitBeforeTax contextRef="OneD" unitRef="INR" decimals="-7">133605800000.00</in-bse-fin:SegmentProfitBeforeTax>
<in-bse-fin:DescriptionOfReportableSegment contextRef="OneReportableSegmentAssets01D">Offshore</in-bse-fin:DescriptionOfReportableSegment>
<in-bse-fin:SegmentAssets contextRef="OneReportableSegmentAssets01D" unitRef="INR" decimals="-7">1670747600000.00</in-bse-fin:SegmentAssets>
<in-bse-fin:DescriptionOfReportableSegment contextRef="OneReportableSegmentAssets02D">Onshore</in-bse-fin:DescriptionOfReportableSegment>
<in-bse-fin:SegmentAssets contextRef="OneReportableSegmentAssets02D" unitRef="INR" decimals="-7">738597600000.00</in-bse-fin:SegmentAssets>
<in-bse-fin:SegmentAssets contextRef="OneD" unitRef="INR" decimals="-7">2409345200000.00</in-bse-fin:SegmentAssets>
<in-bse-fin:UnAllocableAssets contextRef="OneI" unitRef="INR" decimals="-7">1544216000000.00</in-bse-fin:UnAllocableAssets>
<in-bse-fin:NetSegmentAssets contextRef="OneI" unitRef="INR" decimals="-7">3953561200000.00</in-bse-fin:NetSegmentAssets>
<in-bse-fin:DescriptionOfReportableSegment contextRef="OneReportableSegmentLiabilities01D">Offshore</in-bse-fin:DescriptionOfReportableSegment>
<in-bse-fin:SegmentLiabilities contextRef="OneReportableSegmentLiabilities01I" unitRef="INR" decimals="-7">699246200000.00</in-bse-fin:SegmentLiabilities>
<in-bse-fin:DescriptionOfReportableSegment contextRef="OneReportableSegmentLiabilities02D">Onshore</in-bse-fin:DescriptionOfReportableSegment>
<in-bse-fin:SegmentLiabilities contextRef="OneReportableSegmentLiabilities02I" unitRef="INR" decimals="-7">178975500000.00</in-bse-fin:SegmentLiabilities>
<in-bse-fin:SegmentLiabilities contextRef="OneI" unitRef="INR" decimals="-7">878221700000.00</in-bse-fin:SegmentLiabilities>
<in-bse-fin:UnAllocableLiabilities contextRef="OneI" unitRef="INR" decimals="-7">372357300000.00</in-bse-fin:UnAllocableLiabilities>
<in-bse-fin:NetSegmentLiabilities contextRef="OneI" unitRef="INR" decimals="-7">1250579000000.00</in-bse-fin:NetSegmentLiabilities>
<in-bse-fin:DescriptionOfItemThatWillNotBeReclassifiedToProfitAndLoss contextRef="OneItemsThatWillNotBeReclassifiedToProfitAndLoss01D">(i)    Re-measurement of the defined benefit obligations</in-bse-fin:DescriptionOfItemThatWillNotBeReclassifiedToProfitAndLoss>
<in-bse-fin:AmountOfItemThatWillNotBeReclassifiedToProfitAndLoss contextRef="OneItemsThatWillNotBeReclassifiedToProfitAndLoss01D" unitRef="INR" decimals="-7">-116700000.00</in-bse-fin:AmountOfItemThatWillNotBeReclassifiedToProfitAndLoss>
<in-bse-fin:DescriptionOfItemThatWillNotBeReclassifiedToProfitAndLoss contextRef="OneItemsThatWillNotBeReclassifiedToProfitAndLoss02D">(ii)     Equity instruments through other comprehensive income</in-bse-fin:DescriptionOfItemThatWillNotBeReclassifiedToProfitAndLoss>
<in-bse-fin:AmountOfItemThatWillNotBeReclassifiedToProfitAndLoss contextRef="OneItemsThatWillNotBeReclassifiedToProfitAndLoss02D" unitRef="INR" decimals="-7">26845400000.00</in-bse-fin:AmountOfItemThatWillNotBeReclassifiedToProfitAndLoss>
<in-bse-fin:AmountOfItemThatWillNotBeReclassifiedToProfitAndLoss contextRef="OneD" unitRef="INR" decimals="-7">26728700000.00</in-bse-fin:AmountOfItemThatWillNotBeReclassifiedToProfitAndLoss>
<in-bse-fin:IncomeTaxRelatingToItmesThatWillNotBeReclassifiedToProfitOrLoss contextRef="OneD" unitRef="INR" decimals="-7">2355200000.00</in-bse-fin:IncomeTaxRelatingToItmesThatWillNotBeReclassifiedToProfitOrLoss>
<in-bse-fin:IncomeTaxRelatingToItmesThatWillBeReclassifiedToProfitOrLoss contextRef="OneD" unitRef="INR" decimals="-7">0.00</in-bse-fin:IncomeTaxRelatingToItmesThatWillBeReclassifiedToProfitOrLoss>
</xbrli:xbrl>