GST on Deposit incentive given by airlines to travel company

yes. obviously. that extra 10 lacks would be collected by airlines  later and issue the invoice to that extent. so comes under GST.

Soon a new fee may be introduced from the sale of tickets to form a reserve fund, the money from which will go to fulfill the obligations to air passengers in case of force majeure. In case of an airline company bankruptcy, the fund will spend money to transfer its customers to other flights, or the fund will pay for a refund for the failed flight. The fund will not cause an increase in ticket prices. The last time I bought business flights 20 %, I wasn't told I had to pay anything else. You may have misunderstood the ticket price information