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<xbrli:context id="OneOperatingExpenses02D"><xbrli:entity><xbrli:identifier scheme="http://www.nseindia.com/NSESymbol">TATAPOWER</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2023-07-01</xbrli:startDate><xbrli:endDate>2023-09-30</xbrli:endDate></xbrli:period><xbrli:scenario><xbrldi:explicitMember dimension="in-bse-fin:DetailsOfOtherExpensesAxis">in-bse-fin:OneOperatingExpenses02Member</xbrldi:explicitMember></xbrli:scenario></xbrli:context>
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<xbrli:context id="FourOperatingExpenses03D"><xbrli:entity><xbrli:identifier scheme="http://www.nseindia.com/NSESymbol">TATAPOWER</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2023-07-01</xbrli:startDate><xbrli:endDate>2023-09-30</xbrli:endDate></xbrli:period><xbrli:scenario><xbrldi:explicitMember dimension="in-bse-fin:DetailsOfOtherExpensesAxis">in-bse-fin:FourOperatingExpenses03Member</xbrldi:explicitMember></xbrli:scenario></xbrli:context>
<xbrli:context id="FourOperatingExpenses04D"><xbrli:entity><xbrli:identifier scheme="http://www.nseindia.com/NSESymbol">TATAPOWER</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2023-07-01</xbrli:startDate><xbrli:endDate>2023-09-30</xbrli:endDate></xbrli:period><xbrli:scenario><xbrldi:explicitMember dimension="in-bse-fin:DetailsOfOtherExpensesAxis">in-bse-fin:FourOperatingExpenses04Member</xbrldi:explicitMember></xbrli:scenario></xbrli:context>
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<xbrli:context id="FourReportableSegmentRevenue02D"><xbrli:entity><xbrli:identifier scheme="http://www.nseindia.com/NSESymbol">TATAPOWER</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2023-07-01</xbrli:startDate><xbrli:endDate>2023-09-30</xbrli:endDate></xbrli:period><xbrli:scenario><xbrldi:explicitMember dimension="in-bse-fin:ReportableSegmentsAxis">in-bse-fin:FourReportableSegmentRevenue02Member</xbrldi:explicitMember></xbrli:scenario></xbrli:context>
<xbrli:context id="FourReportableSegmentRevenue03D"><xbrli:entity><xbrli:identifier scheme="http://www.nseindia.com/NSESymbol">TATAPOWER</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2023-07-01</xbrli:startDate><xbrli:endDate>2023-09-30</xbrli:endDate></xbrli:period><xbrli:scenario><xbrldi:explicitMember dimension="in-bse-fin:ReportableSegmentsAxis">in-bse-fin:FourReportableSegmentRevenue03Member</xbrldi:explicitMember></xbrli:scenario></xbrli:context>
<xbrli:context id="FourReportableSegmentRevenue04D"><xbrli:entity><xbrli:identifier scheme="http://www.nseindia.com/NSESymbol">TATAPOWER</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2023-07-01</xbrli:startDate><xbrli:endDate>2023-09-30</xbrli:endDate></xbrli:period><xbrli:scenario><xbrldi:explicitMember dimension="in-bse-fin:ReportableSegmentsAxis">in-bse-fin:FourReportableSegmentRevenue04Member</xbrldi:explicitMember></xbrli:scenario></xbrli:context>
<xbrli:context id="OneReportableSegmentResults01D"><xbrli:entity><xbrli:identifier scheme="http://www.nseindia.com/NSESymbol">TATAPOWER</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2023-07-01</xbrli:startDate><xbrli:endDate>2023-09-30</xbrli:endDate></xbrli:period><xbrli:scenario><xbrldi:explicitMember dimension="in-bse-fin:ReportableSegmentsFinanceCostsAxis">in-bse-fin:OneReportableSegmentResults01Member</xbrldi:explicitMember></xbrli:scenario></xbrli:context>
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<xbrli:context id="FourReportableSegmentResults01D"><xbrli:entity><xbrli:identifier scheme="http://www.nseindia.com/NSESymbol">TATAPOWER</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2023-07-01</xbrli:startDate><xbrli:endDate>2023-09-30</xbrli:endDate></xbrli:period><xbrli:scenario><xbrldi:explicitMember dimension="in-bse-fin:ReportableSegmentsFinanceCostsAxis">in-bse-fin:FourReportableSegmentResults01Member</xbrldi:explicitMember></xbrli:scenario></xbrli:context>
<xbrli:context id="FourReportableSegmentResults02D"><xbrli:entity><xbrli:identifier scheme="http://www.nseindia.com/NSESymbol">TATAPOWER</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2023-07-01</xbrli:startDate><xbrli:endDate>2023-09-30</xbrli:endDate></xbrli:period><xbrli:scenario><xbrldi:explicitMember dimension="in-bse-fin:ReportableSegmentsFinanceCostsAxis">in-bse-fin:FourReportableSegmentResults02Member</xbrldi:explicitMember></xbrli:scenario></xbrli:context>
<xbrli:context id="FourReportableSegmentResults03D"><xbrli:entity><xbrli:identifier scheme="http://www.nseindia.com/NSESymbol">TATAPOWER</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2023-07-01</xbrli:startDate><xbrli:endDate>2023-09-30</xbrli:endDate></xbrli:period><xbrli:scenario><xbrldi:explicitMember dimension="in-bse-fin:ReportableSegmentsFinanceCostsAxis">in-bse-fin:FourReportableSegmentResults03Member</xbrldi:explicitMember></xbrli:scenario></xbrli:context>
<xbrli:context id="FourReportableSegmentResults04D"><xbrli:entity><xbrli:identifier scheme="http://www.nseindia.com/NSESymbol">TATAPOWER</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2023-07-01</xbrli:startDate><xbrli:endDate>2023-09-30</xbrli:endDate></xbrli:period><xbrli:scenario><xbrldi:explicitMember dimension="in-bse-fin:ReportableSegmentsFinanceCostsAxis">in-bse-fin:FourReportableSegmentResults04Member</xbrldi:explicitMember></xbrli:scenario></xbrli:context>
<xbrli:context id="OneReportableSegmentAssets01D"><xbrli:entity><xbrli:identifier scheme="http://www.nseindia.com/NSESymbol">TATAPOWER</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2023-07-01</xbrli:startDate><xbrli:endDate>2023-09-30</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">TATAPOWER</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2023-07-01</xbrli:startDate><xbrli:endDate>2023-09-30</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="OneReportableSegmentAssets03D"><xbrli:entity><xbrli:identifier scheme="http://www.nseindia.com/NSESymbol">TATAPOWER</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2023-07-01</xbrli:startDate><xbrli:endDate>2023-09-30</xbrli:endDate></xbrli:period><xbrli:scenario><xbrldi:explicitMember dimension="in-bse-fin:ReportableSegmentAssetsAxis">in-bse-fin:OneReportableSegmentAssets03Member</xbrldi:explicitMember></xbrli:scenario></xbrli:context>
<xbrli:context id="OneReportableSegmentAssets04D"><xbrli:entity><xbrli:identifier scheme="http://www.nseindia.com/NSESymbol">TATAPOWER</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2023-07-01</xbrli:startDate><xbrli:endDate>2023-09-30</xbrli:endDate></xbrli:period><xbrli:scenario><xbrldi:explicitMember dimension="in-bse-fin:ReportableSegmentAssetsAxis">in-bse-fin:OneReportableSegmentAssets04Member</xbrldi:explicitMember></xbrli:scenario></xbrli:context>
<xbrli:context id="OneReportableSegmentLiabilities01D"><xbrli:entity><xbrli:identifier scheme="http://www.nseindia.com/NSESymbol">TATAPOWER</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2023-07-01</xbrli:startDate><xbrli:endDate>2023-09-30</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">TATAPOWER</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:instant>2023-09-30</xbrli:instant></xbrli:period><xbrli:scenario><xbrldi:explicitMember dimension="in-bse-fin:ReportableSegmentLiabilitiesAxis">in-bse-fin:OneReportableSegmentLiabilities01Member</xbrldi:explicitMember></xbrli:scenario></xbrli:context>
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<xbrli:context id="OneReportableSegmentLiabilities02I"><xbrli:entity><xbrli:identifier scheme="http://www.nseindia.com/NSESymbol">TATAPOWER</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:instant>2023-09-30</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="OneReportableSegmentLiabilities03D"><xbrli:entity><xbrli:identifier scheme="http://www.nseindia.com/NSESymbol">TATAPOWER</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2023-07-01</xbrli:startDate><xbrli:endDate>2023-09-30</xbrli:endDate></xbrli:period><xbrli:scenario><xbrldi:explicitMember dimension="in-bse-fin:ReportableSegmentLiabilitiesAxis">in-bse-fin:OneReportableSegmentLiabilities03Member</xbrldi:explicitMember></xbrli:scenario></xbrli:context>
<xbrli:context id="OneReportableSegmentLiabilities03I"><xbrli:entity><xbrli:identifier scheme="http://www.nseindia.com/NSESymbol">TATAPOWER</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:instant>2023-09-30</xbrli:instant></xbrli:period><xbrli:scenario><xbrldi:explicitMember dimension="in-bse-fin:ReportableSegmentLiabilitiesAxis">in-bse-fin:OneReportableSegmentLiabilities03Member</xbrldi:explicitMember></xbrli:scenario></xbrli:context>
<xbrli:context id="OneReportableSegmentLiabilities04D"><xbrli:entity><xbrli:identifier scheme="http://www.nseindia.com/NSESymbol">TATAPOWER</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2023-07-01</xbrli:startDate><xbrli:endDate>2023-09-30</xbrli:endDate></xbrli:period><xbrli:scenario><xbrldi:explicitMember dimension="in-bse-fin:ReportableSegmentLiabilitiesAxis">in-bse-fin:OneReportableSegmentLiabilities04Member</xbrldi:explicitMember></xbrli:scenario></xbrli:context>
<xbrli:context id="OneReportableSegmentLiabilities04I"><xbrli:entity><xbrli:identifier scheme="http://www.nseindia.com/NSESymbol">TATAPOWER</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:instant>2023-09-30</xbrli:instant></xbrli:period><xbrli:scenario><xbrldi:explicitMember dimension="in-bse-fin:ReportableSegmentLiabilitiesAxis">in-bse-fin:OneReportableSegmentLiabilities04Member</xbrldi:explicitMember></xbrli:scenario></xbrli:context>
<xbrli:context id="OneItemsThatWillNotBeReclassifiedToProfitAndLoss01D"><xbrli:entity><xbrli:identifier scheme="http://www.nseindia.com/NSESymbol">TATAPOWER</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2023-07-01</xbrli:startDate><xbrli:endDate>2023-09-30</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>
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<in-bse-fin:DisclosureOfNotesOnFinancialResultsExplanatoryTextBlock contextRef="OneD">1. The above consolidated financial results of The Tata Power Company Limited (“the Holding Company”) and its subsidiaries (together referred to as  Group ) were reviewed by the Audit Committee and approved by the Board of Directors at its meeting held on 8th November, 2023.      2. During the quarter ended 30th September, 2023, the Holding Company supplied power from the Mundra Plant based on the direction of Ministry of Power ( MoP ) under Section 11 of the Electricity Act, 2003 from 16th April 2023 onwards. Accordingly, Holding Company has recognized revenue based on the Central Electricity Regulatory Commission (CERC) Order dated 3rd January 2023. Further on 23rd October, 2023, MoP has extended the term of said direction upto 30th June, 2024.      3. During the quarter ended 30th September, 2023, the shareholders of the Holding Company approved ‘The Tata Power Company Limited – Employee Stock Option Plan 2023’ (‘ESOP 2023’/ ‘Plan’) subject to other statutory approvals as may be necessary. Subsequent to the quarter, the Holding Company has granted 64,82,940 (Sixty Four Lakh Eighty Two Thousand Nine Hundred and Forty) employee stock options at an exercise price of INR 249.80 (Rupees Two Hundred Forty Nine and Eighty Paise) per option exercisable into equivalent equity shares of INR 1 each subject to fulfilment of vesting conditions.      4. During the quarter ended 30th September, 2023, the Holding Company has sold certain assets of an old Thermal Power Plant and has recognized a gain of INR 52 Crore as Other Income in the consolidated financial results.      5. During the previous quarter ended 30th June, 2023, Tata Projects Limited, an associate, has issued equity shares to other investors resulting into a dilution of 16.97%. Gain on dilution of INR 235 crore has been recognized as exceptional item in the consolidated financial statements.      6. Figures for the previous periods/year are re-classified/re-arranged/re-grouped, wherever necessary.      7. The standalone audited financial results of the Holding Company are available for Investors at www.tatapower.com, www.nseindia.com and www.bseindia.com.            The following definitions have been considered for the purpose of computation of ratios and other information:       Debt Equity Ratio : Total Debt/Total Equity   Debt Service Coverage Ratio : (Profit Before Exceptional items &amp; Tax + Interest Expenses  + Depreciation &amp; Amortisation - Current Tax Expense)/Interest expense +               Scheduled principal repayment of  long-term debt and lease liabilities during the period   Interest Service Coverage Ratio : (Profit Before Exceptional Items and Tax + Interest Expense)/Interest Expense      (1) Total Debt: Long term borrowings (including current maturities of long term borrowings), lease liabilities (current and non current), short term borrowings and interest accrued on debts   (2) Total Equity : Issued share capital, other equity and non-controlling interest   (3) For the purpose of computation, scheduled principal repayment of long term borrowings does not include prepayments (including prepayment by exercise of call/put option).</in-bse-fin:DisclosureOfNotesOnFinancialResultsExplanatoryTextBlock>
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<in-bse-fin:DisclosureOfNotesOnAssetsAndLiabilitiesExplanatoryTextBlock contextRef="OneD">1. The above consolidated financial results of The Tata Power Company Limited (“the Holding Company”) and its subsidiaries (together referred to as  Group ) were reviewed by the Audit Committee and approved by the Board of Directors at its meeting held on 8th November, 2023.      2. During the quarter ended 30th September, 2023, the Holding Company supplied power from the Mundra Plant based on the direction of Ministry of Power ( MoP ) under Section 11 of the Electricity Act, 2003 from 16th April 2023 onwards. Accordingly, Holding Company has recognized revenue based on the Central Electricity Regulatory Commission (CERC) Order dated 3rd January 2023. Further on 23rd October, 2023, MoP has extended the term of said direction upto 30th June, 2024.      3. During the quarter ended 30th September, 2023, the shareholders of the Holding Company approved ‘The Tata Power Company Limited – Employee Stock Option Plan 2023’ (‘ESOP 2023’/ ‘Plan’) subject to other statutory approvals as may be necessary. Subsequent to the quarter, the Holding Company has granted 64,82,940 (Sixty Four Lakh Eighty Two Thousand Nine Hundred and Forty) employee stock options at an exercise price of INR 249.80 (Rupees Two Hundred Forty Nine and Eighty Paise) per option exercisable into equivalent equity shares of INR 1 each subject to fulfilment of vesting conditions.      4. During the quarter ended 30th September, 2023, the Holding Company has sold certain assets of an old Thermal Power Plant and has recognized a gain of INR 52 Crore as Other Income in the consolidated financial results.      5. During the previous quarter ended 30th June, 2023, Tata Projects Limited, an associate, has issued equity shares to other investors resulting into a dilution of 16.97%. Gain on dilution of INR 235 crore has been recognized as exceptional item in the consolidated financial statements.      6. Figures for the previous periods/year are re-classified/re-arranged/re-grouped, wherever necessary.      7. The standalone audited financial results of the Holding Company are available for Investors at www.tatapower.com, www.nseindia.com and www.bseindia.com.</in-bse-fin:DisclosureOfNotesOnAssetsAndLiabilitiesExplanatoryTextBlock>
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