The Thane Police have seized more than 15 kg of mephedrone worth Rs 31.8 crore from two cars on a highway in Maharashtra`s Thane district and arrested two men with criminal antecedents, an official said on Tuesday, reported the PTI.

The Thane city police`s crime branch had received a tip-off about the delivery of the contraband near Ranjanoli on the Bhiwandi Bypass Road, he said.

Deputy Commissioner of Police (Crime) Amarsingh Jadhav said that based on the information, a police team laid a trap on the Nashik-Thane highway near Ranjanoli and intercepted two cars on August 9.