India, Oct. 16 -- As Bihar prepares for assembly elections, domestic airlines are, for the first time, adding extra flights to the state to meet rising travel demand during the twin peaks of the "festival of democracy" and Chhath.

Flight bookings usually see a sharp rise around Diwali and Chhath, two of Bihar's most important festivals, but industry stalwarts say this is the first time airlines are increasing capacity and launching new routes as the festive rush overlaps with the state polls.

Air India and Air India Express on Tuesday announced the addition of 166 flights to and from Patna to meet the surging festive demand around Diwali and Chhath Puja.

Ajay Prakash, owner of Nomad Travels and former president of the Travel Agents Fed...