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LEASES - Schedule of maturities of undiscounted lease liabilities (Details) - USD ($)
Jun. 30, 2022
Apr. 30, 2022
Nov. 30, 2020
Oct. 31, 2020
Leases [Abstract]        
Year ending March 31, 2023 $ 160,404      
Year ending March 31, 2024 141,552      
Year ending March 31, 2025 23,074      
Total lease payments 325,030      
Less: Imputed interest (18,873)      
Total lease obligations $ 306,157 $ 60,737 $ 177,629 $ 337,932