The Mumbai customs seized 9.79 kg of gold and electronics worth ₹ 6.75 crore and foreign currency valued at ₹ 88 lakh in a four-day drive at Chhatrapati Shivaji Maharaj International Airport, an official said on Saturday.
Four persons have been arrested in 20 cases in connection with the seizures that were carried out from May 27 to May 30, the official said.
Two foreign nationals travelling from Sharjah and Muscat to Mumbai were found carrying gold dust in wax concealed in rubber sheets recovered from their prayer mats, he said.
An Indian national travelling to Bangkok was caught with foreign currency valued at ₹ 88.6 lakh hidden inside two shampoo bottles.