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Prepaid Expenses and Other Current Assets (Tables)
12 Months Ended
Mar. 31, 2020
Prepaid Expenses And Other Current Assets  
Schedule of Prepaid Expenses and Other Current Assets
   As of
March 31,
   As of
March 31,
 
   2020   2019 
Prepayments to suppliers  $3,564,705   $5,940,447 
Other current assets   699,425    116,769 
Total  $4,264,130   $6,057,216