please tell me how to adjust purchase return in gst what is treatment

am trying to file gstr1 return for July 2017 on system portal.  I have saved and successfully submitted the data.  But when i try to file the return with EVC option and after entering the OTP received, the message come on the screen is " Error, invoices already submitted". What does that mean ? I have tried this for 5_6 times but every time same error pops up.

Your RC under is cancelled, therefore, your Provisional ID / GSTIN / UIN stands cancelled. Hence you are not permitted to migrate under GST
i have migrated from vat to gst successfully and provisional gstin number alloted to me and also i have downloaded the provisional certificate from gst portal after login.
but today when we want to file necessary gst return and want to login at gst portal the same error shows at login page.
please suggest

#GST #Returns *Due dates extended* *July* GSTR-1- 10th September GSTR-2- 25th September GSTR-3- 30th September *August* GSTR-3B-20th September GSTR-1- 5th October GSTR-2- 10th October GSTR-3- 15th October Trans-1- 28th September

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While submitting GSTR-1, sign with EVC & Verification is disabled for a long time...how to resolve?

under GST if a person sale to unregistered dealer then is there any problem to person while filing return ????

how to calculate gst on coffee and tea expense when total bill include expense of fooding that amounting of rs. less than 5000 and tea expense is above rs. 5000. so how to calculate gst RCM? on total invoice or on individual item wise.or total invoice wise??

At the time of New GST registration when i go for uploading the bank statement there are only two option first one is Bank statement and second one is cancel cheque

My query in this regard is that Current account is mandatory for GST registration or we can proceed with saving account also as earlier they are giving the option of bank passbook but now they have remove the such option

Thanks in advance.............

Sir, one contractor person registered his PAN in incometaxindiaefiling site in some tax consultant , but they did not file their it return and unable to provide password to me, how can i change his password? He has also unable to provide me his his for 16 to me... Is it possible to pay some self assessment tax and generate challan then change his password with BSR code, challan sequence number and challan date??

I am facing problem while submit the GSTR-1. Portal Show the massage " Your Submit request has been received, please check the status in sometime"

Pls Advise.