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Trade and other receivables (Details 2) - INR (₨) ₨ in Thousands	12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Disclosure of Allowance for doubtful accounts receivable [Abstract]
Balance at the beginning of the year	₨ 579,550	₨ 480,403
Add : Additional provision, net	194,814	265,000
Less : Bad debts written off	(116,907)	(165,853)
Balance at the end of the year	₨ 657,457	₨ 579,550

X

- Definition

Additional allowances recognised in profit or loss, allowance account for credit losses of financial assets.

+ References

No definition available.

+ Details

Name:	sify_AdditionalAllowancesRecognisedInProfitOrLossAllowanceAccountForCreditLossesOfFinancialAssets
Namespace Prefix:	sify_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Allowance account for credit losses of financial assets.

+ References

No definition available.

+ Details

Name:	sify_AllowancesAccountForCreditLossesOfFinancialAssets
Namespace Prefix:	sify_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	sify_DisclosureOfAllowanceForDoubtfulAccountsReceivableAbstract
Namespace Prefix:	sify_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Reversal allowances account for credit losses of financial assets.

+ References

No definition available.

+ Details

Name:	sify_ReversalAllowancesAccountForCreditLossesOfFinancialAssets
Namespace Prefix:	sify_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration