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Deferred income (Tables)
12 Months Ended
Mar. 31, 2021
Disclosure Of Deferred Income [Abstract]  
Disclosure of detailed information about current deferred income [text block]
 
 
 
March 31, 2021
 
 
March 31, 2020
 
Contract liabilities  2,307,214   2,454,665 
         
 
 
 
2,307,214
 
 
 
2,454,665