Mumbai customers by offering return economy tickets to London for Rs 40,943 inclusive of taxes and levies.
The offer is valid only for those booking before Friday, the airline said in a statement, adding the offer is available for flights on the World Traveller Economy class on the Mumbai-London-Mumbai route and also booked through its online booking platform.
Announcing the offer airline's regional commercial manager Christopher Fordyce said, "India is a key market for British Airways."
British Airways has invested over 110 million pounds in its new World Traveller and World Traveller Plus cabins. The offer is available from October 16 to 19 and outbound travel between October 29 and November 16.
British Airways, which covers over 150 destinations in 75 countries, has been present in the country for 83 years and operates 45 flights a week from the London Heathrow to Mumbai, New Delhi, Chennai, Bangalore and Hyderabad.