According to the officials, generally, a passenger is not served more than 100 ml of liquor during a flight.
The Air India Express Employees Union, which is affiliated with the Bharatiya Mazdoor Sangh, has written a letter to the chief labour commissioner (central) in this regard.
SpiceJet, Air India Express and IndiGo will operate special flights from Hungarian capital Budapest and Romania's Bucharest on Monday and Tuesday to evacuate Indians stranded in Ukraine due to the Russian military offensive.
Three evacuation flights from Romania's capital Bucharest and Hungary's capital Budapest came to India on Tuesday with 616 Indian nationals who were stranded in Ukraine due to the Russian military offensive, officials said.
On Monday, the fifth Air India flight landed in Delhi from Bucharest with 249 Indian nationals while the sixth flight arrived from Budapest here with 240 Indian nationals, the officials said.