An Mi-17 helicopter was on a routine training when it experienced a technical glitch around 2:20 PM.
The flight was diverted to Kolkata at 2:15 am due to a suspected technical issue.
A Malaysia Airlines flight from Amsterdam to Kuala Lumpur made an unscheduled landing on Thursday in Chennai due to broken lavatories.
No one was hurt in the incident and the aircraft was driven into a parking area at the side of the road.
The Jet flight 9W 536 with 61 people on board was on its way from Mumbai to Dubai but had to be diverted to Muscat after the bomb threat.
The sources said the emergency landing was made after crew saw message on a toilet mirror which read 'bomb in cargo hold'.
Most number of precautionary landings (18) were made by the planes of Air India and Air India Express, followed by private carrier Jet Airways (8), Minister of State for Civil Aviation Mahesh Sharma said in written reply in Lok Sabha on Monday.
The plane, however, made a safe landing at the Tribhuvan International Airport, the Jet Airways said.
An Air India pilot's action has saved a passenger's life who was onboard to a Mumbai bound flight.
The pilot first contacted the Air Traffic Control (ATC) shortly after 9 PM and informed that a passenger had fallen sick and he would be making an emergency landing, the sources said.
Australian plane made an emergency landing after an elderly passenger seized control over it.
The Air India flight made the emergency landing at 9:54 pm. All passengers are reported to be safe.
All the passengers and crew members on board the aircraft are safe, the official said.
A Pakistani chartered aircraft, on its way from Lahore to Dhaka with 100 passengers on board, landed in Lucknow under emergency conditions following fuel shortage, airport officials said.
Malaysian Airlines has reported that the flight has landed safely at the Kuala Lumpur International Airport.
Flight MH192, which departed for Bangalore on Sunday, suffered a landing gear snag upon take-off and turned back to KL Airport.
The airlines said that the flight was carrying a total number of 166 people on board which include 159 passengers and 7 crew members.
A Samajwadi Party minister on Tuesday escaped unhurt when a helicopter in which he was travelling made an emergency landing after its engine failed in Saharanpur.
An Avianca Airlines passenger jet safely made an emergency landing in Brasilia on Friday after its front landing gear failed to deploy, authorities said.
A Dubai-bound Air India Express flight with 189 passengers onboard on Saturday made an emergency landing at the Chhatrapati Shivaji International Airport after it was diverted here due to technical issue.
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