GST on consultancy

 In this case, you may be considered as an exporter of services, and according to GST regulations, export of services is typically eligible for a 0% GST rate.

However, it's important to consult with a crypto-friendly CA to ensure you're meeting all the necessary conditions and complying with GST regulations.

Regarding GST invoicing, you should include the Indian company's name and your own GSTIN (Goods and Services Tax Identification Number) on the invoice.

Since you're recently GST-registered, you won't need to file GST for previous months' income.

However, you'll need to file GST returns starting from the month you got registered.

Please consult a tax professional or expert to ensure accurate GST compliance and invoicing.

Additionally, consider the following: -

Verify your GST registration and obtain your GSTIN. -

Ensure you meet the export of services conditions for 0% GST. -

Consult your CA to determine the appropriate GST invoicing format. - File GST returns starting from the month you got registered.

Remember to seek professional guidance to ensure accurate GST compliance and invoicing.