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Contract balances (Details Textual) - INR (₨) ₨ in Thousands	12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Statements [Line Items]
Contract Costs Capitalised	₨ 22,692	₨ 23,763
Contract costs Amortized	₨ 52,800	₨ 37,084

X

- Definition

The amount of contract costs amortised for the period.

+ References

No definition available.

+ Details

Name:	sify_ContractCostsAmortized
Namespace Prefix:	sify_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The amount of customer contract costs capitalised.

+ References

No definition available.

+ Details

Name:	sify_ContractCostsCapitalised
Namespace Prefix:	sify_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Statements [Line Items]

+ References

No definition available.

+ Details

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