Operating leases (Details 1) - INR (₨) ₨ in Thousands	Mar. 31, 2018	Mar. 31, 2017
Operating lease income
Expected future minimum sublease payments receivable under non-cancellable subleases, classified as operating lease	₨ 45,325	₨ 231,012
Not later than one year [member]
Operating lease income
Expected future minimum sublease payments receivable under non-cancellable subleases, classified as operating lease	17,472	207,266
Later than one year and not later than five years [member]
Operating lease income
Expected future minimum sublease payments receivable under non-cancellable subleases, classified as operating lease	₨ 27,853	₨ 23,746

The amount of future minimum sublease payments expected to be received under non-cancellable subleases for operating leases. Minimum lease payments are payments over the lease term that the lessee is, or can be, required to make, excluding contingent rent, costs for services and taxes to be paid by, and reimbursed to, the lessor, together with: (a) for a lessee, any amounts guaranteed by the lessee or by a party related to the lessee; or (b) for a lessor, any residual value guaranteed to the lessor by: (i) the lessee; (ii) a party related to the lessee; or (iii) a third party unrelated to the lessor that is financially capable of discharging the obligations under the guarantee.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Note Expiry date 2019-01-01
-Name IAS
-Number 17
-IssueDate 2017-01-01
-Paragraph 35
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=17&date=2017-03-02&anchor=para_35_b&doctype=Standard&book=B
-URIDate 2017-03-09

Name:	ifrs-full_ExpectedFutureMinimumSubleasePaymentsReceivableUnderNoncancellableSubleasesClassifiedAsOperatingLease
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant