Financial Risk Management (Details 8) - INR (₨) ₨ in Millions	12 Months Ended
Mar. 31, 2026	Mar. 31, 2025
Disclosure of financial risk management [Abstract]
Equity	₨ 0	₨ 0
Profit or (loss)	₨ (40)	₨ (6)

The amount of change in net profit due to change in basis points.

No definition available.

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