The incident occurred yesterday when personnel of Central Industrial Security Force (CISF) posted at the airport detected two bullets of .32mm calibre loaded in the magazine from the baggage of Vinay K.
He was supposed to take an Air India flight to Ahmedabad.
"Vinay was asked to produce documents but could not do so," a CISF spokesperson said.
Carrying live bullets without proper documents is illegal under civil aviation rules.
Vinay was later handed over to Delhi Police, which booked him under various provisions of the Arms Act.