CONCENTRATION OF CREDIT RISK (Details)	9 Months Ended	12 Months Ended
	Dec. 31, 2020 USD ($) customer	Mar. 31, 2020 USD ($)
Concentration of credit risk and major customers
Accounts receivable	$ 1,173,376	$ 990,300
Accounts Receivable | Customer Concentration Risk | Customer A
Concentration of credit risk and major customers
Accounts receivable	$ 356,228
Concentration risk percentage	30.00%
Accounts Receivable | Customer Concentration Risk | Customer B
Concentration of credit risk and major customers
Accounts receivable	$ 243,938
Concentration risk percentage	21.00%
Accounts Receivable | Customer Concentration Risk | Customer C
Concentration of credit risk and major customers
Accounts receivable	$ 193,750
Concentration risk percentage	17.00%
Accounts Receivable | Customer Concentration Risk | Customer D
Concentration of credit risk and major customers
Accounts receivable		$ 365,636
Concentration risk percentage		37.00%
Accounts Receivable | Customer Concentration Risk | Customer E
Concentration of credit risk and major customers
Accounts receivable	$ 167,152	$ 254,637
Concentration risk percentage	14.00%	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%
Accounts Receivable | Customer Concentration Risk | Customer G
Concentration of credit risk and major customers
Accounts receivable	$ 123,909
Concentration risk percentage	11.00%
Trade Receivables
Concentration of credit risk and major customers
Number of significant customers | customer	5
Concentration risk percentage	93.00%