Missing MH370: 'Inconceivable' plane went through Indian airspace undetected, say air traffic controllers

NEW DELHI: Air traffic controllers in Kolkata have ruled out the possibility that the missing Malaysian Airlines MH370 plane flew through Indian airspace without being detected.

"If an aircraft wants to avoid being seen, they can easily become invisible to civilian radar by switching off the transponder. But it cannot avoid defence systems," said Kolkata air traffic controllers' guild secretary Sugata Pramanik, in an interview with The Times of India.