23 November 2023
It should be GSTR 3b of October 23 due date 20th November 23.
The last date to make amendments, corrections in GSTR-3B, and claim any missed Input Tax Credit or ITC of one financial year is no longer due date to file September return of the following year, but it is 30th November of the following year or filing of annual return, whichever is earlier.
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