The DRI had also arrested an accountant of a gold shop and the two were remanded to judicial custody.
The arrested were Paul Jose, 27, of Nayathodu, Ernakulam, and Muhammed Ashraf, 27, hailing from Malappuram.
In a different seizure by the Customs on May 14, a woman passenger was found carrying a gold chain coated with a silver colour from a flight heading to the city from Muscat.
Meanwhile, intelligence sources said the buck will not stop with any one agency and all stakeholders of the airport are under scrutiny.
Air Intelligence Unit sleuths from the Customs department foiled bids to smuggle Iranian saffron worth Rs 60 lakh and gold worth Rs 13.3 lakh and arrested one person at the airport here on Thursday.
On extraction by heat treatment, 2.93-kg gold of 24K purity was recovered. Gold ring and chains weighing 159 gm were also recovered.
The Directorate of Revenue Intelligence (DRI) sources said they are in the initial stage of probe into the gold smuggling case and hence cannot reveal much.
As per officials, passengers seem to be flying to the city from different parts of the world like Singapore, Dubai, Bangkok and other countries.
The receivers in Hyderabad are responsible for monitoring the operation and the actual collection, toward which they deploy confidential persons right outside the RGI Airport.
According to CBI officials, Saroh made a deal with smugglers based in West Asia to smooth the customs process for the carriers.
In a separate incident, two female passengers who had arrived by Gulf Air flight GF 068, were intercepted by AIU officers at exit on suspicion of carrying gold.
The CBI on Friday carried out searches at the houses of three persons, including a Customs havildar who was facilitating gold smuggling through Cochin International Airport.
The Air Intelligence Unit of the Customs department foiled bids to smuggle 3.4kg gold worth `1.12 crore at Chennai Airport and arrested two persons in this regard.
A customs release said AIU officials detected two cases of gold smuggling on Wednesday night and one case of foreign currency on Thursday morning.
Air Intelligence Unit sleuths of the Customs department foiled attempts to smuggle 1.36-kg gold worth `44.4 lakh in separate incidents at the Chennai airport.