Aditya Birla Group on Friday said it donated funds to political outfits through a trust for around 15 years and that these were done within permissible limits of the country's laws.
Jet Airways, SpiceJet and Vistara also operated all women crew flights, though on their domestic network.
SpiceJet had rolled out a scheme offering a discount of Rs 200 to every passenger who books a flight with only one handbag and no check-in baggage.