CONCENTRATION OF CREDIT RISK (Details) - USD ($)	6 Months Ended	12 Months Ended
	Sep. 30, 2019	Mar. 31, 2019
Concentration of credit risk and major customers
Accounts receivable	$ 826,841	$ 1,010,443
Accounts Receivable | Customer Concentration Risk | Customer A
Concentration of credit risk and major customers
Accounts receivable	$ 197,100
Concentration risk percentage	24.00%
Accounts Receivable | Customer Concentration Risk | Customer B
Concentration of credit risk and major customers
Accounts receivable		$ 339,032
Concentration risk percentage		34.00%
Accounts Receivable | Customer Concentration Risk | Customer C
Concentration of credit risk and major customers
Accounts receivable	$ 186,737	$ 246,019
Concentration risk percentage	23.00%	24.00%
Accounts Receivable | Customer Concentration Risk | Customer D
Concentration of credit risk and major customers
Accounts receivable		$ 244,500
Concentration risk percentage		24.00%
Accounts Receivable | Customer Concentration Risk | Customer E
Concentration of credit risk and major customers
Accounts receivable	$ 158,314
Concentration risk percentage	19.00%
Accounts Receivable | Customer Concentration Risk | Customer F
Concentration of credit risk and major customers
Accounts receivable	$ 149,500
Concentration risk percentage	18.00%
Accounts Receivable | Customer Concentration Risk | Customer G
Concentration of credit risk and major customers
Accounts receivable	$ 119,850
Concentration risk percentage	15.00%
Trade Receivables [Member]
Concentration of credit risk and major customers
Concentration risk percentage	99.00%