New Delhi: Kingfisher Airlines was not operating 175 of the 418 daily departure flights approved for it during winter schedule 2011 leading to cancellation of its slots.

"Directorate General of Civil Aviation (DGCA) has issued letters to Kingfisher for violation of Rule 140 A of aircraft Rules 1937," Civil Aviation Minister Ajit Singh said in reply to a question in the Lok Sabha on Wednesday.

"Kingfisher Airlines has informed that they have initiated reconfiguration of their aircraft due to which some of their aircraft are out of service for a few weeks," Singh told the House.

The slots allotted to Kingfisher had been cancelled, the
Minister said.

In reply to another question, Singh said that Air India had increased the fuel surcharge on short haul domestic routes as well as on long haul flights within the country from
November 20 this year.

"The fuel surcharge has been increased by Rs 200 on sectors less than 1400 km and by Rs 300 on sectors more than
1400 km," Singh said.