Insurance services - Summary of Effect of Reinsurance (Detail) - 12 months ended Mar. 31, 2024 ₨ in Millions, $ in Millions	INR (₨)	USD ($)
Premium and other operating income from insurance business:
Direct	₨ 389,925.5	$ 4,678.7
Assumed	1,588.5	19.1
Ceded	(9,634.5)	(115.6)
Total	381,879.5	4,582.2
Claims and benefits paid pertaining to insurance business:
Direct	383,194.5	4,597.9
Assumed	1,029.4	12.4
Ceded	(2,258.1)	(27.1)
Total	₨ 381,965.8	$ 4,583.2

Amount of earned premiums assumed from other entities.

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Amount of earned premiums ceded to other entities.

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Amount, before premiums ceded to other entities and premiums assumed by the entity, of premiums earned.

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Amount, before effect of policies assumed or ceded, of expense related to provision for policy benefits and costs incurred.

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Amount, after effects of policies assumed or ceded, of expense related to the provision for policy benefits and costs incurred.

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Amount of policy benefits and costs incurred for policies assumed.

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Amount of reduction of provision for policy benefits and costs incurred for policies ceded.

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