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BORROWINGS FROM FINANCIAL INSTITUTIONS, CURRENT AND NONCURRENT (Details) - USD ($)	3 Months Ended		6 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Mar. 31, 2020
Loans Payable to Bank, Noncurrent	$ 62,420		$ 62,420		$ 64,221
Short-term loan from an insurance institution
Short-term loan	383,072		383,072
Principal paid by purchaser			274,322
Financial Institutions Borrower [Member]
Loans Payable to Bank	657,394		657,394		290,974
Loans Payable to Bank, Noncurrent	62,420		62,420		$ 64,221
Interest Expense, Borrowings	$ 14,892	$ 11,430	$ 35,540	$ 21,668
Minimum [Member] \| Financial Institutions Borrower [Member]
Debt Instrument, Interest Rate, Stated Percentage	6.20%		6.20%
Minimum [Member] \| Credit line with Bank of Changsha
Long-term Debt, Term	13 months		13 months
Maximum [Member] \| Financial Institutions Borrower [Member]
Debt Instrument, Interest Rate, Stated Percentage					8.10%
Maximum [Member] \| Credit line with Bank of Changsha
Long-term Debt, Term	24 months		24 months