India, March 12 -- Air India on Wednesday announced the expansion of its premium economy offering, setting the starting fares at Rs.599 above the standard economy fares on domestic flights.

According to the announcement on the airline's website, the limited period offer was fueled by doubling of premium economy ticket sales in the past three years. The Tata Group-owned airline is the only carrier that offers this class of seats in domestic flights. It has a quota of 50,000 premium economy seats in a week, with 34,000 or 68 per cent of those serving key metro to metro connectivity, the website informed.

Passengers who choose premium economy to fly to their preferred destination with Air India receive several perks, including a free selec...