Please advise any services from unregistered person comes under gst reverse charge or not

Dear Sir,
I want to know that a trader deals in Computer and office stationery and computer job work i.e. printing work, online bill payment, etc. he is want opt composition scheme 1%. but ration of his trading and job is 75:25. In this condition can he opt composition scheme 1%.
Thanks

My Client filed wrong return.

He was NRI but added this NRI income in Return and showed tax due.

He identified this error and revised return.

In revised return, He showed interest income as per 26AS and Loss on house property. He however wrongly showed status as Resident Indian.

His First return has come under computer scrutiny.

Can he revise ,, his revised return and show his status as NRI.

Ay 16-17 I had filed my income tax return in July 2016 but the deductor revised the TDS Return in Sept 2016 because of which Credit of TDS remained unreflected in my IT Return of Ay 16-17 but now in my 26-AS it has been reflected. Whether that much TDS Credit has been forfeited or can be claimed in my IT Return of Ay 17-18. Please guide me and oblige.

Is it required to take registration in gst for shopkeeper selling MRP goods (Turnover exceeds 20 lakhs)?

I am trying to e filing ITR3 through efiling portal of income tax but I didn't find option of itr3 and there only option of ITR 1 and 4. Please help

If a company hires any retainer under a contract and the retainer is not registered under GST then is the company liable to pay GST under RCM?
Also, if a company avail the services of freelancers who are also not registered then would RCM become applicable? Going by a hypothetical number say 500 freelancers in a month.

Pls let me know the HSN code and gst rate on flex board and glow sign for shop.

If a company hires any retainer under a contract and the retainer is not registered under GST then is the company liable to pay GST under RCM? Also, if a company avail the services of freelancers who are also not registered then would RCM become applicable? Going by a hypothetical number say 500 freelancers in a month.

what if any existing taxpayer utlized all his ITC in Vat & now he want to pay GST under composition levy ? is he required to pay amount equal to VAT on existing stock?