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Income Taxes - Summary of Reconciliation of Income Tax Expense (Parenthetical) (Detail) - INR (₨)		12 Months Ended
	Dec. 31, 2017	Mar. 31, 2018
Reconciliation of accounting profit multiplied by applicable tax rates [abstract]
US federal tax rate	35.00%	21.00%
Re-statement of deferred tax		₨ 1,563

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- References

No definition available.

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- Definition

The tax rate effect on the reconciliation between the average effective tax rate and the applicable tax rate resulting from the application of foreign tax rates. [Refer: Average effective tax rate; Applicable tax rate]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 12
-IssueDate 2018-01-01
-Paragraph 81
-Subparagraph c
-Clause ii
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=12&date=2018-03-01&anchor=para_81_c_ii&doctype=Standard
-URIDate 2018-03-16

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- Definition

Restatement Of Deferred Tax Items Pursuant To US Tax Reforms

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No definition available.

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