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Deferred income
 12 Months Ended
Mar. 31, 2022
Disclosure Of Deferred Income [Abstract]  
Disclosure of deferred income [text block]
21.
Deferred income
 
 
 
March 31, 202
2
 
 
March 31, 2021
 
Contract liabilities
 
 
3,590,018
 
 
 
2,307,214
 
 
 
 
 
 
 
 
 
 
 
 
 
3,590,018
 
 
 
2,307,214