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Benefit Payments, Gratuity (Detail) - Gratuity ₨ in Millions	Mar. 31, 2018 INR (₨)
Benefit payments
2019	₨ 782.7
2020	567.5
2021	473.2
2022	423.4
2023	398.4
2024 - 2028	₨ 1,516.6

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Amount of benefits for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following latest fiscal year.

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Amount of benefits for defined benefit plan expected to be paid in next fiscal year following latest fiscal year.

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Amount of benefits for defined benefit plan expected to be paid in fourth fiscal year following latest fiscal year.

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