New Delhi: Claiming a 'phenomenal' response to its fly-at-rail rates, Air India Monday added more domestic city pairs to the list of flights on which unsold seats will be offered at Rajdhani AC II fares four hours before their departure time.

Now, last-minute travellers between Delhi and Ranchi; Delhi and Ahmedabad; Delhi and Hyderabad; Delhi and Goa; Delhi and Patna and Delhi and Raipur can buy AI economy class tickets at Rajdhani AC II fares if they have unsold seats till four hours before departure time.