New Delhi, June 21 (PTI): Jet Airways today announced a special offer which would enable its economy class passengers to upgrade to business class by paying an additional amount of Rs 500 to 1,200 on the normal economy class fares.

The ‘Anniversary Upgrade Offer’ would be valid on 56 sectors of the airline’s network during July 5 to October 31, 2003.

The special fares would have to be booked 10 days in advance and can be availed of by both Indian and foreign nationals holding resident or work permits, Jet Airways said adding the offer was announced as part of its 10th anniversary celebrations.

The new fares for a passenger travelling on the Delhi-Mumbai sector on the anniversary upgrade offer would be Rs 8,980 instead of the normal business class fare of Rs 11,405.

Similarly, the fares on the Delhi-Calcutta route would be Rs 9,790 (Rs 13,120) while on the Bangalore-Delhi route, it would be Rs 12,045 instead of Rs 16,620.

Passengers have to carry a bonafide identity card while travelling.