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Employee benefits (Details 2) - INR (₨) ₨ in Thousands | Mar. 31, 2022 | Mar. 31, 2021 | Mar. 31, 2020 | Mar. 31, 2019
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Disclosure Of Employee Benefits [Line Items] |  |  |  |
Projected benefit obligation at the end of the year | ₨ 216,006 | ₨ 177,098 | ₨ 156,412 | ₨ 145,108
Plan assets at the end of the year | (138,268) | (40,651) | ₨ (30,474) | ₨ (25,498)
Funded status amount of liability recognised in the Balance Sheet | ₨ 77,738 | ₨ 136,447 |  |

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- Definition The amount of deficit or surplus in a defined benefit plan, adjusted for any effect of limiting a net defined benefit asset to the asset ceiling. [Refer: Defined benefit plans [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2021-01-01 -Paragraph 140 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_140_a&doctype=Standard -URIDate 2021-03-24 + Details
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Balance Type: | credit
Period Type: | instant

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- Definition The fair value of defined benefit plan assets. Plan assets comprise assets held by a long-term employee benefit fund and qualifying insurance policies. [Refer: At fair value [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2021-01-01 -Paragraph 57 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_57_a&doctype=Standard -URIDate 2021-03-24 + Details
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- References No definition available. + Details
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Namespace Prefix: | sify_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Funded status amount of liability. + References No definition available. + Details
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Namespace Prefix: | sify_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant