GSTR3B filig date

open GST website, go to search tax payer, search using GSTIN
Enter gstin number and captcha code
There you will be able to see details of client
Below that you will be able to see which returns are filed by the client along with the date of filing.

Also, I just checked whether it shows or not and it is available over there.
use this to get date on which returns are filed

Login to GST website with ur credentials, go to services->Returns->Track Return Status... U can see ARN number, type of return, date of filing and status of it..

Just go to service--> eReturn---> Select the period and type of return

Thank u all

20TH OF THE NEXT MONTH IS DUE DATE FOR GSTR_3B