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Financial instruments (Details 2) ₨ in Thousands, $ in Thousands | 12 Months Ended
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Mar. 31, 2022 INR (₨) | Mar. 31, 2022 USD ($) | Mar. 31, 2021 INR (₨) | Mar. 31, 2021 USD ($)
Change in value of forward elements of forward contracts [abstract] |  |  |  |
Nominal Amounts Of Hedging Instrument | $ |  | $ 4,500 |  | $ 2,000
Written put options [member] | Currency swap contract [member] |  |  |  |
Change in value of forward elements of forward contracts [abstract] |  |  |  |
Nominal Amounts Of Hedging Instrument | ₨ 0 |  | ₨ 0 |
Purchased call options [member] | Currency swap contract [member] |  |  |  |
Change in value of forward elements of forward contracts [abstract] |  |  |  |
Nominal Amounts Of Hedging Instrument | ₨ 0 |  | ₨ 0 |

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- Definition Nominal amount of hedging instrument. + References No definition available. + Details
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