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Goodwill and Intangible Assets - Summary of Movement in Intangible Assets (Parenthetical) (Detail) - INR (₨) ₨ in Millions | 12 Months Ended
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Mar. 31, 2018 | Mar. 31, 2017 | Mar. 31, 2016
Reconciliation of changes in intangible assets other than goodwill [abstract] |  |  |
Impairment charge | ₨ 643 | ₨ 3,056 | ₨ 0

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- Definition The amount of impairment loss recognised in profit or loss for intangible assets other than goodwill. [Refer: Impairment loss recognised in profit or loss; Intangible assets other than goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2017-01-01 -Paragraph 118 -Subparagraph e -Clause iv -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=38&date=2017-03-01&anchor=para_118_e_iv&doctype=Standard -URIDate 2017-03-09 + Details
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- References No definition available. + Details
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