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<in-bse-fin:DisclosureOfNotesOnFinancialResultsExplanatoryTextBlock contextRef="OneD">Notes to Standalone financial results:  n1.t(a) In exercise of powers u/s 178 of the Electricity Act 2003, Central Electricity Regulatory Commission (CERC) has notified “CERC (Terms and Conditions of Tariff) Regulations, 2019” vide order dated 7th March, 2019 for the determination of transmission tariff for the block period 2019-24.   n(b) The company has recognised Transmission income during the quarter ended 30th June, 2020 as per the following:  n(i) Rs 226.58 Crore for the quarter (corresponding previous quarter Nil) as per final tariff orders issued by CERC for the tariff period 2019-24.  n(ii) Rs 8,417.06 Crore for the quarter (corresponding previous quarter Rs 8,438.59 Crore) in respect of transmission assets for which final tariff orders are yet to be issued as per CERC Tariff Regulations for the block period 2019-24 and other orders in similar cases.  n(c) Consequent to the final order issued by CERC, transmission income includes Rs 65.25 crore (increase) for the quarter ended 30th June, 2020 (corresponding previous quarter Rs 117.26crore (increase)) pertaining to earlier years.  n(e) Revenue from transmission decreased by Rs 160.01 crore for the quarter ended 30th June, 2020 due to change in MAT rate from 18.5% to 15% considered for grossing up of Return on Equity (ROE) as per CERC Regulations in accordance with the amendment in section 115JB of the Income Tax Act, 1961 announced by Government of India through Taxation Laws (Amendment) ordinance, 2019.  n2.tThe Company is mainly engaged in the business of transmission of electricity and the tariffs for the transmission services are regulated in terms of the CERC Tariff Regulations which provide for recovery of the annual transmission charges based on system availability. As per the Government of India guidelines, transmission units and services fall under the category of essential services and exempted from the lockdown.  nThe Company has considered various internal and external information available up to the date of approval of Financial Results and there has been no material impact on the operations of the company for the Quarter ended 30th June 2020. However, the company has given a consolidated one-time rebate of Rs 1,075 crore to DISCOMs and Power Departments of States / Union Territories for passing on to end consumers on account of COVID-19 pandemic against the billing of April’20 and May’20. Due to said consolidated one-time rebate, there is a reduction in the profit for the current quarter and the same has been disclosed under “Exceptional items” in the Statement of Financial Results. The company will continue to monitor any material changes to future economic conditions.  n3.tProvision for taxes, employee benefits and other provisions for contingencies have been considered on estimated basis.  n4.tThe above statement of Standalone financial results has been reviewed by the Audit Committee and has been approved by the Board of Directors in their respective meetings held on 10th August, 2020.   n5.tAs required under regulation 33 of SEBI (Listing Obligations and Disclosure Requirements) Regulations 2015, as amended to the extent applicable, the Statutory Auditors have conducted a limited review of the Standalone financial results for the quarter ended 30th June, 2020.  n6.tPrevious period figures have been regrouped / rearranged wherever considered necessary.</in-bse-fin:DisclosureOfNotesOnFinancialResultsExplanatoryTextBlock>
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<in-bse-fin:DescriptionOfReportableSegment contextRef="OneReportableSegmentResults03D">Transmission</in-bse-fin:DescriptionOfReportableSegment>
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<in-bse-fin:SegmentFinanceCosts contextRef="OneD" unitRef="INR" decimals="-7">22786000000.00</in-bse-fin:SegmentFinanceCosts>
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<in-bse-fin:DisclosureOfNotesOnSegmentsExplanatoryTextBlock contextRef="OneD">Note-   n1. The operations of the Company are mainly carried out within the country and therefore, geographical segments are not applicable.  n2. Profit before tax including Regulatory Deferral Account Balance  n3. Other Unallocable Expenditure net off unallocable income includes 'exceptional item - transmission'</in-bse-fin:DisclosureOfNotesOnSegmentsExplanatoryTextBlock>
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<in-bse-fin:DescriptionOfReportableSegment contextRef="OneReportableSegmentAssets01D">Consultancy</in-bse-fin:DescriptionOfReportableSegment>
<in-bse-fin:SegmentAssets contextRef="OneReportableSegmentAssets01D" unitRef="INR" decimals="-7">29624300000.00</in-bse-fin:SegmentAssets>
<in-bse-fin:DescriptionOfReportableSegment contextRef="OneReportableSegmentAssets02D">Telecom</in-bse-fin:DescriptionOfReportableSegment>
<in-bse-fin:SegmentAssets contextRef="OneReportableSegmentAssets02D" unitRef="INR" decimals="-7">11615300000.00</in-bse-fin:SegmentAssets>
<in-bse-fin:DescriptionOfReportableSegment contextRef="OneReportableSegmentAssets03D">Transmission</in-bse-fin:DescriptionOfReportableSegment>
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<in-bse-fin:UnAllocableAssets contextRef="OneI" unitRef="INR" decimals="-7">524072500000.00</in-bse-fin:UnAllocableAssets>
<in-bse-fin:NetSegmentAssets contextRef="OneI" unitRef="INR" decimals="-7">2592019700000.00</in-bse-fin:NetSegmentAssets>
<in-bse-fin:DescriptionOfReportableSegment contextRef="OneReportableSegmentLiabilities01D">Consultancy</in-bse-fin:DescriptionOfReportableSegment>
<in-bse-fin:SegmentLiabilities contextRef="OneReportableSegmentLiabilities01I" unitRef="INR" decimals="-7">35473800000.00</in-bse-fin:SegmentLiabilities>
<in-bse-fin:DescriptionOfReportableSegment contextRef="OneReportableSegmentLiabilities02D">Telecom</in-bse-fin:DescriptionOfReportableSegment>
<in-bse-fin:SegmentLiabilities contextRef="OneReportableSegmentLiabilities02I" unitRef="INR" decimals="-7">5323300000.00</in-bse-fin:SegmentLiabilities>
<in-bse-fin:DescriptionOfReportableSegment contextRef="OneReportableSegmentLiabilities03D">Transmission</in-bse-fin:DescriptionOfReportableSegment>
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<in-bse-fin:SegmentLiabilities contextRef="OneI" unitRef="INR" decimals="-7">185834600000.00</in-bse-fin:SegmentLiabilities>
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<in-bse-fin:NetSegmentLiabilities contextRef="OneI" unitRef="INR" decimals="-7">1927757800000.00</in-bse-fin:NetSegmentLiabilities>
</xbrli:xbrl>