MUMBAI, July 26 -- Two gold smuggling syndicates using aircraft at Chhatrapati Shivaji Maharaj International Airport (CSMIA) to hide and retrieve contraband have been busted by the DRI, with eight people arrested and 15.764kg of foreign-origin gold worth Rs.23.63 crore seized. The arrests were made in two separate operations by the DRI's Mumbai zonal unit under the Customs Act, 1962. In the first operation, three foreign passengers arriving from Addis Ababa were intercepted on Thursday and Friday. A search of the aircraft led to the recovery of 12kg of 24-carat foreign-origin gold bars worth around Rs.18 crore. The passengers had allegedly concealed the gold inside the aircraft so that other members of the syndicate could later retrieve it. In a second operation conducted on Wednesday and Thursday, officers intercepted two aircraft cleaning staff members, a passenger and two other alleged members of the syndicate. They recovered 3.76kg of 24-carat foreign-origin gold dust in wax form worth around Rs.5.63 crore....