What is the tax code to capture GST on the ticket?

What is the GST rate applied on my ticket?

On what routings shall GST apply?

Where do I record the GST information?

What are the GDS cryptic commands for the new SSR elements in PNR?

Whose GST details should I record in the PNR?

Is GST refundable?

Will GST apply on commissions and incentives that I receive from Vistara?

Do I need to raise invoices for claiming commissions/incentives?

I forgot recording GST details or I provided incorrect GST details?