Saw this link in another forum
//business-standard.com/india/news/once-bitten-air-india-shies-awayeurope/430127/
“We do not plan to make any hub in Europe, or Dublin for that matter, because it does not make sense for a carrier like us, which has direct flights to the US. All our flights are doing well,” said a top AI official, who did not want to be identified."
“With the amount of fuel you need to have in the aircraft for a Delhi-Dublin flight, a Boeing 777 will not be able to land or take off on this runway. For such operations, one at least needs a 10,500-ft runway,” said Mohan Ranganathan, a Chennai-based aviation analyst, who has worked as a pilot with various airlines.
He adds that the airport is also “notorious” when it comes to landing and takeoff, and pilots need special training, which would be further trouble for the ailing carrier."