v3.26.1
Income taxes (Details)
12 Months Ended
Mar. 31, 2026
USD ($)
Mar. 31, 2026
HKD ($)
Mar. 31, 2025
USD ($)
Mar. 31, 2024
Mar. 31, 2023
Mar. 31, 2022
Mar. 31, 2021
Income taxes (Details) [Line Items]              
Tax rate 25.00% 25.00% 25.00%        
Assessable profits (in Dollars) $ 378,085   $ 307,741        
Preferential tax rate 15.00% 15.00% 15.00% 15.00% 15.00% 15.00% 15.00%
HONG KONG | Maximum [Member]              
Income taxes (Details) [Line Items]              
Tax rate 16.50% 16.50%          
Assessable profits (in Dollars)   $ 2,000,000          
HONG KONG | Minimum [Member]              
Income taxes (Details) [Line Items]              
Tax rate 8.25% 8.25%          
Assessable profits (in Dollars)   $ 2,000,000          
CHINA              
Income taxes (Details) [Line Items]              
Tax rate 25.00% 25.00%