Employee benefits (Details) ₨ in Thousands, $ in Thousands	Mar. 31, 2018 INR (₨)	Mar. 31, 2018 USD ($)	Mar. 31, 2017 INR (₨)
Disclosure Of Employee Benefits [Abstract]
Gratuity payable	₨ 99,120		₨ 89,114
Compensated absences	48,360		38,184
Non-current provisions for employee benefits	₨ 147,480	$ 2,268	₨ 127,298

The amount of assets of a retirement benefit plan less liabilities other than the actuarial present value of promised retirement benefits.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 26
-IssueDate 2017-01-01
-Paragraph 35
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=26&date=2017-03-01&anchor=para_35_a&doctype=Standard
-URIDate 2017-03-09

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount of liabilities other than the actuarial present value of promised retirement benefits in retirement benefit plans. [Refer: Actuarial present value of promised retirement benefits]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 26
-IssueDate 2017-01-01
-Paragraph 35
-Subparagraph a
-Clause v
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=26&date=2017-03-01&anchor=para_35_a_v&doctype=Standard
-URIDate 2017-03-09

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount of non-current provisions for employee benefits. [Refer: Provisions for employee benefits]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2017-01-01
-Paragraph 78
-Subparagraph d
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_78_d&doctype=Standard
-URIDate 2017-03-09

+ Details

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- References

No definition available.

+ Details

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