New Delhi, Oct 10 (IANS): Buying Air India or Alliance Air domestic flight tickets in business and economy class online between October 15 and December 31 will enable fliers to win free domestic return tickets, Air India announced on Friday.

The "Web Loyalty Bonus" scheme launched for the festive season for passengers booking tickets exclusively on www.airindia.in for six business class and eight economy class sectors will qualify for one free return ticket in the respective category, said an Air India statement.

The free return ticket can be availed for any domestic sector while Delhi-Mumbai is one of the six business class sectors which make the fliers eligible for the scheme, the statement added.

India's national carrier will absorb the basic fare and fuel surcharge for the free tickets while the winners have to bear all the applicable taxes and levies.

The reward tickets have a validity of six months maximum up to July 31, 2016.