query rgarding amendment of gstr1

If you  are filing monthly GSTR1  then last to amend was 11/4/2019 so  now you can not amend , as per order 2 ( C.T)

dated  31/12/2018 and for quarterly GSTR1 , you can amend  up to 30/4/2019 , Just  check  on portal . 

Just  check  order 2(C.T) dt 31/12/2018  on CBIC  web site  GST / Notifications / orders   and confirm with others also.