The present invention relates to a method for delivery of goods. Specifically, the present 5 invention relates to a method for secure delivery of a purchased item by means of a smart packing box. The present invention further relates to a smart packing box that detects tampering with the parcel carrying the item and informs the parties involved in selling and purchasing i.e. the seller and the purchaser of the item. The present invention also relates to a smart box comprising smart circuit further comprising GPS (i.e. Global Positioning System), 10 GSM (Global System for Mobile Communication), sensors, and a microcontroller.