we are running a banquet hall. please guide for GST applicable for Banquets when ITC refund is not availed

Hi Experts,
We have registered GST at Tamilnadu and Gujarat.

Tamilnadu we already started and doing e invoice
Gujarat newly started business, turnover at Gujarat will be arround 10 L .

Can you pls confirm GST invoicing mandatory for Gujarat registered?

Can we permanently reverse the ITC that was temporarily reversed? if yes how to do it on portal?

Our one client dealing with surgical instruments business, he imported of goods through FedEx courier and paid IGST 12% at the time of import of goods to the government, and he is resell imported goods without any changes to Maharashtra clients. Query is that Now Can he claim imported goods IGST amount as per GSTR-2b reflected on portal?

Sir, I have query kindly resolve this, for Example Mr. A GST Registered Taxpayer has sold Open plots to buyers which is exempt as per GST. But, My query here is, May I need to show that Exempted Sales in GSTR 1 or Not ?

Can any body tell me what is the tax payable in this situation I don't know how to set off on the portal tax payable cgst - 29795 sgst - 29795 igst - 0
Itc opening balance - igst 4223
Current month itc - igst - 24949 cgst - 3210 sgst - 3210 please tell me and solve it

Should the service provider be able to claim ITC on purchase of agricultural things for such agricultural purpose?

Dear All

I am paying freight in cash to transpoters. Some bills are reflecting under GST for which I am liable to pay reverse charge but others it is not showing. Do I have to pay reverse charge on that also and claim the input credit for that or i need not to consider the amount which is not in GST.

Dear Sir
Proprietor have a business of Installation of Solar ( Power) Plant. Started Business March 2024 Previous FY 2023-24 Sale Rs.495000/- He is not Registered In GST assuming Sale FY 2024-25 Less then 40 Lacs near about Rs.3750000/- So Can he Issue Simple Invoice Rs.1700000/- ( Single Invoice Or 2 or more Bill of Rs. 1700000/- )Solar Plant to be install in Same state Distance from Proprietor Location to Buyer location 100 KM. Can be face any issue on the way like that e way bill, and more

Please suggest

Does anyone know about GST liabilities for income from online platform called as Teespring. This platform allows users to create a storefront on their website. Users then can sale different products available on their platforms by using user's own original designs. Buyers can place order on Teespring platform. That platform then prints and ships the desired order to the buyer and give some profit to that particular platform user that designed that particular product. E.g. if a buyer buys product of $28 from that platform, then the person who designed and uploaded that product for selling on that platform gets approx. $6. This playform pays through PayPal or Payoneer.
Link for Teespring platform is
https://teespring.com/
Kindly, guide me about GST liabilities for this platform. Is GST applicable for income from this platform? And If GST applicable then is GST registration needed right from the begining or only after income in a year exceeds 20 lakhs?
Thank you.