Cash and cash equivalents (Details) ₨ in Thousands, $ in Thousands	Mar. 31, 2025 INR (₨)	Mar. 31, 2025 USD ($)	Mar. 31, 2024 INR (₨)	Mar. 31, 2024 USD ($)	Mar. 31, 2023 INR (₨)	Mar. 31, 2022 INR (₨)
Current restricted cash [Abstract]
Bank deposits held under lien against borrowings / guarantees from banks / Government authorities	₨ 453,800		₨ 440,445		₨ 1,194,787
Total restricted cash	453,800	$ 5,303	440,445		1,194,787
Cash [abstract]
Cash and bank balances	4,997,210	58,391	4,105,489		3,650,446
Other bank deposits (maturity period more than 3 months)	1,306,816	15,270	1,288,700		0
Total Non restricted cash	6,304,026		5,394,189		3,650,446
Total cash (a+b)	6,757,826		5,834,634		4,845,233
Bank overdraft used for cash management purposes	(326,327)	(3,813)	(486,888)		(951,504)
Other bank deposits (maturity period more than 3 months)	(1,306,816)		(1,288,700)		0
Cash and cash equivalents for the statement of cash flows	4,670,883	$ 54,579	3,618,601	$ 42,283	2,698,942	₨ 3,409,983
Bank deposits held under lien against borrowings / guarantees from banks / Government authorities	₨ (453,800)		₨ (440,445)		₨ (1,194,787)

The amount that has been withdrawn from an account in excess of existing cash balances. This is considered a short-term extension of credit by the bank. [Refer: Cash and cash equivalents]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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The amount of cash on hand and demand deposits, along with short-term, highly liquid investments that are readily convertible to known amounts of cash and that are subject to an insignificant risk of changes in value. [Refer: Cash; Cash equivalents]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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The amount of cash and cash equivalents in the statement of cash flows when different from the amount of cash and cash equivalents in the statement of financial position. [Refer: Cash and cash equivalents]

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- Definition

The amount of current restricted cash and cash equivalents. [Refer: Restricted cash and cash equivalents]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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The amount of current assets that the entity does not separately disclose in the same statement or note. [Refer: Current assets]

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The amount of differences between cash and cash equivalents in the statement of cash flows and the statement of financial position that the entity does not separately disclose in the same statement or note. [Refer: Cash and cash equivalents]

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The amount of cash and cash equivalents whose use or withdrawal is restricted. [Refer: Cash and cash equivalents]

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The summation of restricted and non-restricted amount of cash .

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Non restricted cash and cash equivalents.

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