The promotional offers are New Year Special and Lucky First.
Under the New Year Special offer, passengers will get an all-inclusive one-way fare of Rs 5,016 for travel between the metros on flights departing between 8 pm on December 31, and 8 am on January 1, the national carrier said in a statement.
Under the second scheme, valid for travel between January 1 and 15, passengers travelling in Economy or Business class on its Boeing 777 flights on Delhi-Mumbai-Delhi sector will stand a chance to win an upgrade to First Class. A lucky draw will be held at the boarding gate before take off, it added.