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Accounts Receivable (Tables)
12 Months Ended
Mar. 31, 2019
Receivables [Abstract]  
Schedule of Accounts Receivable
   As of March 31, 
   2019   2018 
Accounts receivable, gross  $32,011,536   $32,564,827 
Less: allowance for doubtful accounts   -    - 
Accounts receivable  $32,011,536   $32,564,827