Former Indian tennis star Vijay Amritraj has resigned from the board of the beleaguered Kingfisher Airlines.

This leaves the carrier with just four board members, including one independent director.

Chairman Vijay Mallya, vice-chairman Subhash Gupte, president and chief financial officer A K Ravi Nedungadi and Anil Kumar Ganguly are the remaining directors on the company’s board.

The resignation of Amritraj came as Kingfisher announced the withdrawal of widebody international flights as an Airbus A330 was impounded at Heathrow yesterday.

The debt-ridden airline also suffered a further blow as British Airways suspended a code share agreement with Kingfisher, as reported yesterday by Travel Weekly.

An airline statement said: “Vijay Amritraj has, because of increase in his travel schedule and commitments that will prevent him from attending any board meetings in 2012-13, resigned from the board of directors of the company.”