"Confirm through Security?"
Actually, the India DGAC story reminds me of some NASA ASRS reports a few years ago of how, in one country, fighter jocks practiced their intercept skills on airliners. It wasn't appreciated by the Flight Crew.
Causing a delay to an airliner on a revenue flight is not cool. I like to think that BA will send the airport authority/DGAC the bill and that IATA & ICAO will be jumping down DGAC's throat.