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Contract balances (Details) ₨ in Thousands, $ in Thousands		Mar. 31, 2025 INR (₨)	Mar. 31, 2025 USD ($)	Mar. 31, 2024 INR (₨)	Mar. 31, 2023 INR (₨)
Statements [Line Items]
Trade Receivables	[1]	₨ 10,892,452		₨ 10,155,223
Contract Assets – Unbilled Revenue		24,063		26,536	₨ 52,581
Contract liabilities – Deferred Income
Current contract liabilities		2,822,787		2,083,932
Non-current contract liabilities		3,289,882	$ 38,442	3,053,428
Total Contract liabilities – Deferred Income		₨ 6,112,969		₨ 5,137,360
[1] Trade receivables as of March 31, 2025 and March 31, 2024 are stated net of allowance for doubtful receivables.  The Group maintains an allowance for doubtful receivables based on expected credit loss model. The Group’s exposure to credit and currency risks and impairment losses related to trade and other receivables, excluding construction work in progress is disclosed in note 34. Trade receivables consist of:

X

- Definition

The amount of an entity’s right to consideration in exchange for goods or services that the entity has transferred to a customer, when that right is conditioned on something other than the passage of time (for example, the entity’s future performance).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

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Balance Type:	debit
Period Type:	instant

X

- Definition

The amount of an entity’s obligation to transfer goods or services to a customer for which the entity has received consideration (or the amount is due) from the customer.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
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- References

No definition available.

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- Definition

The amount of non-current contract liabilities. [Refer: Contract liabilities]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

The amount due from customers for goods and services sold.

+ References

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- Definition

Contract liability deferred income current.

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No definition available.

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- Definition

Statements [Line Items]

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No definition available.

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