Four persons, including a DGCA official and a pilot, have been arrested by Delhi Police in connection with the fake flying license scam. Police said they have arrested DGCA official Pradeep Kumar, pilot Pradeep Tyagi and two touts. One of them has been identified as Lalit Jain. With the fresh arrests,10 people have been taken into custody in connection with the racket.DGCA had already grounded 14 pilots for obtaining their commercial pilot licences, CPL by submitting fake records and documents. A person is eligible to fly a commercial aircraft only when he or she secures a CPL, which is given out after a person completes 200 hours of flying during the training. However, the 14 pilots whose licenses have been revoked had allegedly not flown the mandatory hours and are alleged to have got fake certificates from a Rajasthan flying training institute.DGCA chief E K Bharat Bhushan had recently said that the CPLs of around 10,000 pilots are under the scanner, besides about 4,000 holders of Airlines Pilots Training License. He also said that DGCA would conduct third-party audit of all the 40 flying schools in the country in the wake of cases of forgery behind securing of licences coming to light.