Four SpiceJet pilots have been grounded as they failed to clear the preflight alcohol test (breath analyser test).
The mandatory preflight medical test showed they were drunk when they arrived to fly their scheduled flights.
The incidents happened between a period of five days from November 29 to December 2, the airline said.
The four pilots are captain Joel Hangshing, captain Nikhil Suri, captain Richa Chauhan and first officer Chander Pratap.
Documents accessed by HT show while Hangshing was scheduled to fly SG 6365 from Mumbai to Kolkata on November 29, Suri had to fly flight number SG 8913 from Delhi to Ahmedabad.
Chauhan was detected positive for alcohol when she was scheduled to fly flight number SG 376 from Mumbai to Patna, Pratap had to fly SG 192 to Bagdogra from Delhi.
All the pilots were to fly Boeing 737 aircraft.
SpiceJet is an Indian low-cost airline headquartered in Gurgaon, India. It is the second largest airline in the country by number of domestic passengers carried.