CONCENTRATION OF CREDIT RISK (Details)	6 Months Ended	12 Months Ended
	Sep. 30, 2020 USD ($) customer	Mar. 31, 2020 USD ($)
Concentration of credit risk and major customers
Accounts receivable	$ 1,378,617	$ 990,300
Accounts Receivable | Customer Concentration Risk | Customer A
Concentration of credit risk and major customers
Accounts receivable	$ 367,121	$ 365,636
Concentration risk percentage	27.00%	37.00%
Accounts Receivable | Customer Concentration Risk | Customer B
Concentration of credit risk and major customers
Accounts receivable	$ 284,406
Concentration risk percentage	21.00%
Accounts Receivable | Customer Concentration Risk | Customer C
Concentration of credit risk and major customers
Accounts receivable	$ 275,025
Concentration risk percentage	20.00%
Accounts Receivable | Customer Concentration Risk | Customer D
Concentration of credit risk and major customers
Accounts receivable	$ 199,960
Concentration risk percentage	15.00%
Accounts Receivable | Customer Concentration Risk | Customer E
Concentration of credit risk and major customers
Accounts receivable	$ 180,800	$ 254,637
Concentration risk percentage	13.00%	26.00%
Accounts Receivable | Customer Concentration Risk | Customer F
Concentration of credit risk and major customers
Accounts receivable		$ 123,000
Concentration risk percentage		12.00%
Trade Receivables
Concentration of credit risk and major customers
Number of significant customers | customer	5
Concentration risk percentage	96.00%