Investigators for India's Directorate General of Civil Aviation found two pilots had forged their qualifying papers for a pilots license, according to the Times of India.
The pair, which flew for different airlines, had faked papers saying that they had passed tests to become captains, when in fact they were still in co-pilot status.
The DGCA became suspicious of one pilot for IndiGo, a woman named Meenakshi Sehgal, after she repeatedly caused damage to the Airbus 320 she flew after landing the plane on the nose wheel (not the usual rear wheels), according to the Agence France Presse.
The two pilots have since been suspended, but regulators in India see this as a growing concern.
There have already been cases of forged licenses in the country, and DGCA chief Bharat Bhushan has ordered all pilots licenses to be verified quickly.
A senior commander told the Times of India :
Having a fake commander in a flight is like having a quack heading the team of doctors performing an operation. What will such a person's knowledge or experience be? God save such flyers. This is as big a safety issue as can be.