The Air Intelligence Unit (AIU) of the Customs department seized 543 grams of gold worth Rs 27.70 lakh from a passenger at Kochi airport on Friday morning. While examining the passenger, a rectangular-shaped packet suspected to contain gold in compound form and weighing 543 grams was found stitched inside his underwear. The packet has been seized by the officials. The accused has been identified as Ashok. Further investigations are going on in this case.