Mumbai Airport customs seized 15 kgs of gold valued at Rs 7.87 crore in four cases and foreign currency worth Rs 22 lakh in two different cases on Tuesday and Wednesday and arrested seven people in total, the customs official said. In the first case, officers at Chhatrapati Shivaji Maharaj International Airport (CSMIA) developed intelligence inputs and caught one Indian national who arrived by Emirates flight EK 500 from Dubai with 9.895 kg of gold valued at Rs 5.20 crore.