An airline statement said Flight 9W697 with 166 passengers and five crew members landed normally in Mumbai.
Medical help was given to 30 passengers.
Oxygen masks were deployed during the emergency aboard the Boeing 737, said Darshak Hathi, a passenger.
According to Flightradar24 aviation tracking site, the plane stopped climbing at 11,000 feet (3,350 meters) before returning to Mumbai.
Hathi also said there was a problem with the plane's air conditioning after it took off from Mumbai.
The Press Trust of India news agency quoted an official as saying the malfunctioning occurred during the plane's climb.
The plane was heading to Jaipur, a tourist destination and the capital of Rajasthan state.
The airline said the flight's cockpit crew was taken off scheduled duties pending an investigation.
A cockpit mix-up left more than 30 passengers on an
Indian plane bleeding from their ears and noses Thursday after the crew
forgot to flick a switch regulating cabin air pressure.
The
Jet Airways flight carrying 166 passengers landed back in Mumbai and
those affected were given medical attention while alternative flights
were arranged, Jet Airways said.
The incident of ear and nose bleeding are associated with air pressure changes within the cabin.
Outside pressure drops dramatically as plane gains altitude and it
becomes impossible to breathe outside the cabin at the cruising altitude
of jets which generally varies from about 33,000 feet to 42,000 feet.Air plane cabins are pressurized to maintain a constant cabin altitude of 8500 feet in order to enable the passengers to breathe when the outside air pressure is low.
A lack of oxygen can lead to hypoxia, a condition where the amount of oxygen reaching the body tissues gradually drops.
Oxygen masks installed in the ceiling are used in the case of an loss of cabin pressure.
