Arnab Ghosal, a customer service agent with the company for more than a year, was arrested on the basis of a complaint lodged by AI SATS assistant manager (security) Satish Kumar on September 11, DCP (IGI Airport) Sanjay Bhatia said.
Air India SATS is the ground service handling arm of Air India.
Bhatia said that a case was registered after one of the nine bags, which were put under custom clearance, was missing.
Bhatia said that Ghosal was apprehended and interrogated during which he had confessed to the crime. The stolen bag was recovered from his rented accommodation.
"One more bag was also found from his room and on questioning, he said he had stolen it earlier. The bags have been seized," the DCP said.