Capital Management (Details) ₨ in Millions, $ in Millions	Mar. 31, 2026 INR (₨)	Mar. 31, 2026 USD ($)	Mar. 31, 2025 INR (₨)	Mar. 31, 2024 INR (₨)
Disclosure of objectives, policies and processes for managing capital [abstract]
Debt	₨ 42,506		₨ 43,290
Less: cash and cash equivalents and fixed deposits lien marked towards term loans	(6,237)		(6,404)
Net debt	36,269		36,886
Equity	₨ 18,933	$ 200	₨ 20,129	₨ 18,072
Net debt to Equity ratio	191.57%	191.57%	183.24%

The amount of outstanding funds that the entity is obligated to repay.

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- Definition

The amount of equity attributable to the owners of the parent. This specifically excludes non-controlling interest.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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The amount of net debt of the entity.

+ References

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- Definition

The amount of cash and cash equivalents and fixed deposits lien marked towards term loans.

+ References

No definition available.

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Ratio of net debt to equity.

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