Yes you can take the K3 tax accordingly however there are few issues that we(my company) are facing:
1. The bills from travel agents do not show the bifurcation of K3. K3 maybe cgst, sgst or igst based on the place where the airlines has been registered and origin and destination. Without knowing this how will you account in you books.?
2. In few of the invoice from the agent, the K3 tax is not exactly 5% rather more than 5% i.e 5.12% or 5.05%. We are unsure what constitues in the K3 tax because the ticket the agent shares do not have the break up of the K3.
However, the agent specifies the PNR of hte ticket so you have lookup the number in the airlines website to review the GST charged.however you cannot do this for each and every ticket if the tickets volume is enormous.
Regards
Ajay B