v3.26.1
Schedule of reconciliation between statutory income tax and effective tax (Details) - USD ($)
12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Effective Income Tax Rate Reconciliation [Line Items]      
Income before income taxes $ (8,499,053) $ (2,925,989) $ (5,212,305)
PRC statutory income tax rate 25.00% 25.00% 25.00%
Provision for income taxes at statutory tax rate $ (2,124,763) $ (731,497) $ (1,303,076)
Tax Jurisdiction of Domicile [Extensible Enumeration] Income tax expense/(credit) Income tax expense/(credit) Income tax expense/(credit)
Effect of preferential tax rates, percentage (15.50%)    
Effect of non-tax deductible expenses and loss   $ 166 $ 25
Effect of non-tax deductible expenses and loss, percentage (0.00%)    
Income tax expense 53,048 (27,273)
Effective tax rate, percentage    
Deferred tax assets $ 1,161,878 1,580,716 1,195,951
Valuation allowance (1,161,878) (1,580,716) (1,195,951)
Deferred tax assets, net of valuation allowance
Deferred tax liability
Deferred tax assets, net
Effect of tax-exempt entity   294,740 23,825
Effect of previous year over-paid tax expenses  
Effect of deductible prior year loss  
Effect of tax loss not recognized   37,488 187,292
Effect of previous year over-accrued tax expenses  
Effect of investment (income)/loss not recognized   (2,768) 271
Effect of impairment not recognized   454,919 1,064,390
Income tax expense/(credit) 53,048 (27,273)
CHINA      
Effective Income Tax Rate Reconciliation [Line Items]      
Income before income taxes $ (6,478,687) $ (1,492,557) $ (5,114,375)
PRC statutory income tax rate 25.00%    
HONG KONG      
Effective Income Tax Rate Reconciliation [Line Items]      
PRC statutory income tax rate 16.50%    
Income Tax Jurisdiction, Domestic Federal, State, and Local [Member] | CHINA      
Effective Income Tax Rate Reconciliation [Line Items]      
Effect of preferential tax rates $ 1,317,390    
Effect of non-tax deductible expenses and loss 72    
Change in valuation allowance $ 329,275    
Change in valuation allowance, percentage 3.90%    
Income Tax Jurisdiction, Foreign [Member] | CAYMAN ISLANDS      
Effective Income Tax Rate Reconciliation [Line Items]      
PRC statutory income tax rate 5.60%    
Provision for income taxes at statutory tax rate $ 475,202    
Income Tax Jurisdiction, Foreign [Member] | HONG KONG      
Effective Income Tax Rate Reconciliation [Line Items]      
PRC statutory income tax rate (0.00%)    
Provision for income taxes at statutory tax rate $ 562    
Effect of non-tax deductible expenses and loss $ 1,091    
Effect of non-tax deductible expenses and loss, percentage (0.00%)    
Income Tax Jurisdiction, Foreign [Member] | SINGAPORE      
Effective Income Tax Rate Reconciliation [Line Items]      
PRC statutory income tax rate (0.00%)    
Provision for income taxes at statutory tax rate $ 270    
Effect of non-tax deductible expenses and loss $ 574    
Effect of non-tax deductible expenses and loss, percentage (0.00%)    
Income Tax Jurisdiction, Foreign [Member] | UNITED STATES      
Effective Income Tax Rate Reconciliation [Line Items]      
PRC statutory income tax rate (0.00%)    
Provision for income taxes at statutory tax rate $ 52    
Effect of non-tax deductible expenses and loss $ 274    
Effect of non-tax deductible expenses and loss, percentage (0.00%)