Kardassis, who quit the airline in 2013, will advise Goyal and senior management on cost-saving and productivity improvement
The company's chief operating officer Capt Hameed Ali will be the acting CEO.
Nikos Kardassis will become the next chief executive officer of Jet Airways, taking over the reins from Wolfgang Prock-Schauer who will step down on October 15, 2009.
Prock-Schauer has resigned to join British Midland PLC. He will be replaced by senior vice president Nikos Kardassis.
The appointment followed the resignation of Nikos Kardassis on June 7 after he served two terms as CEO between 1993-1999 and again from October 2009 till May 2013.
The airline's chief financial officer Ravishankar Gopalakrishnan will be acting as the CEO.
Also limits on-flight catering costs at foreign airports to save cost
According to the monthly traffic data for November, released by the Directorate General of Civil Aviation on Wednesday, IndiGo continues to lead the pack with a market share of 27.3 per cent.
It will provide Jet Airways and the Arab airline members of AACO, with opportunities to create synergies.
Airline to increase full-service flights as Kingfisher curtails operations.
The carrier has deployed Airbus 330-200 aircraft on the route.
Karnik was mandated to oversee commercial and sales functions of the airline. He took over from Hameed Ali, who joined the airline's board.
Changes being driven by Etihad, says a source, after a V-P quits
Jet Airways' Acting CEO and Chief Financial Officer Ravishankar Gopalakrishnan has resigned, sources said on Tuesday, the latest in the high-profile exit from the private carrier.
The top-level exodus at Naresh Goyal-promoted Jet Airways continued on Friday, with chief financial officer and acting CEO Ravishankar Gopalakrishnan quitting.
After 18 months of closure, what really could be salvaged? And the answer sadly is, precious little, Patience, perseverance and plenty of moolah is the way forward even assuming intent is in place, says Anjuli Bhargava.
Etihad earns about 23 per cent of its passenger revenue from code-share and equity partners, and this would increase after its tie-up with Jet.
Stressful work schedules and limited growth opportunities are taking a toll on a large number of senior professionals in airlines.
Scholarships, sports and spirit define Phee Teik Yeoh, the new CEO of Vistara in India