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Income taxes (Details Narrative)
12 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Mar. 31, 2021
India [member] | Bottom of range [member]      
Reserve Quantities [Line Items]      
Applicable tax rate 25.17% 25.17% 25.17%
India [member] | Top of range [member]      
Reserve Quantities [Line Items]      
Applicable tax rate 26.00% 31.20% 31.20%
Singapore [Member]      
Reserve Quantities [Line Items]      
Applicable tax rate 17.00% 17.00% 17.00%