Do you travel insurance with flight disruption, medical, med evacuation, theft, etc.? Of nothing? Or hoping your credit card will cover something?
You did not have a "
connection"
With separate tickets you are taking 100% of the risk.
Some you win - some you lose. Better luck next time
What other airlines fly BKK- DEL?
https://www.google.com.au/flights/#s...7-01;q=BKK+DEL