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Share-based payments (Details 3) | 12 Months Ended
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Mar. 31, 2022 yr $ / shares | Mar. 31, 2021
Option Plan Iii Grant Date May 7 2021 [Member] |  |
Statement [Line Items] |  |
Grant date | May 7, 2021 |
Category | Category III |
Current market price | $ / shares | $ 208.7 |
Exercise price | $ / shares | $ 187.83 |
Dividend yield | 12.00% |
Discount rate | 1.00% |
Option Plan Iii Grant Date Oct 28 2021 [Member] |  |
Statement [Line Items] |  |
Grant date | Oct 28, 2021 |
Category | Category III |
Current market price | $ / shares | $ 256.64 |
Exercise price | $ / shares | $ 230.97 |
Dividend yield |  | 12.00%
Discount rate | 1.00% |
Bottom of range [member] | Option Plan Iii Grant Date May 7 2021 [Member] |  |
Statement [Line Items] |  |
Expected term | yr | 2 |
Volatility | 75.63% |
Bottom of range [member] | Option Plan Iii Grant Date Oct 28 2021 [Member] |  |
Statement [Line Items] |  |
Expected term | yr | 2 |
Volatility | 57.76% |
Top of range [member] | Option Plan Iii Grant Date May 7 2021 [Member] |  |
Statement [Line Items] |  |
Expected term | yr | 5 |
Volatility | 157.41% |
Top of range [member] | Option Plan Iii Grant Date Oct 28 2021 [Member] |  |
Statement [Line Items] |  |
Expected term | yr | 5 |
Volatility | 115.02% |

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- Definition The date on which share-based payment arrangements are granted. [Refer: Share-based payment arrangements [member]] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 2 -IssueDate 2021-01-01 -Paragraph IG23 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2021-en-r&anchor=para_IG23&doctype=Implementation%20Guidance -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 2 -IssueDate 2021-01-01 -Paragraph 45 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2021-en-r&anchor=para_45_a&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The expected volatility of the share price used to calculate the fair value of the share options granted. Expected volatility is a measure of the amount by which a price is expected to fluctuate during a period. The measure of volatility used in option pricing models is the annualised standard deviation of the continuously compounded rates of return on the share over a period of time. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2021-01-01 -Paragraph 47 -Subparagraph a -Clause i -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2021-en-r&anchor=para_47_a_i&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The implied yield currently available on zero-coupon government issues of the country in whose currency the exercise price for share options granted is expressed, with a remaining term equal to the expected term of the option being valued (based on the option's remaining contractual life and taking into account the effects of expected early exercise). [Refer: Government [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2021-01-01 -Paragraph 47 -Subparagraph a -Clause i -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2021-en-r&anchor=para_47_a_i&doctype=Standard -URIDate 2021-03-24 + Details
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