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Commitments and Contingencies - Additional Information (Detail) - INR (₨) ₨ in Millions	Mar. 31, 2015	Mar. 31, 2014
Loss Contingencies [Line Items]
Capital commitments, estimated amounts of contracts remaining to be executed on the capital account	₨ 3,260.4	₨ 2,492.2
Contingencies, estimated provision for indirect taxes claims which are not yet acknowledged as debts	₨ 3,964.8	₨ 4,090.9

X

- Definition

The amount of estimate of debts for indirect taxes other claims which are contingent in nature.

+ References

No definition available.

+ Details

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X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Period Type:	duration

X

- Definition

The floor amount as of the balance sheet date that the entity must expend to satisfy the terms of disclosed arrangements (excluding long-term commitments) in which the entity must commit resources to supply goods or services to one or more customers.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 942



-SubTopic 210



-Section S99



-Paragraph 1



-Subparagraph (SX 210.9-03.17)



-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878



Reference 2: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 210



-SubTopic 10



-Section S99



-Paragraph 1



-Subparagraph (SX 210.5-02.25)



-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682



Reference 3: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 944



-SubTopic 210



-Section S99



-Paragraph 1



-Subparagraph (SX 210.7-03.(a)(19))



-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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