Employee benefits (Details 1) - Parent Company Gratuity plan [Member] - INR (₨) ₨ in Millions	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Disclosure of net defined benefit liability (asset) [line items]
Present value of funded obligations	₨ 2,894	₨ 2,628	₨ 2,349
Fair value of plan assets	(2,350)	(1,997)
Net defined benefit liability recognized	₨ 544	₨ 631

The present value, without deducting any plan assets, of expected future payments required to settle the obligation resulting from employee service in the current and prior periods. [Refer: Plan assets, at fair value]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 19
-IssueDate 2021-01-01
-Paragraph 57
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_57_a&doctype=Standard
-URIDate 2021-03-24

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- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

+ References

No definition available.

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- Definition

The fair value of defined benefit plan assets. Plan assets comprise assets held by a long-term employee benefit fund and qualifying insurance policies. [Refer: At fair value [member]]

+ References

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- Definition

The fair value of any plan assets, less the present value of the defined benefit obligation. [Refer: Plan assets [member]]

+ References

+ Details

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- Details

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