Electronic Cargo Tracking ensures sealed transshipment through India to Nepal, prohibiting diversion and requiring carrier declarations and customs verification. Form-I requires an authorised carrier to declare shipment and consignee details, goods description, and to undertake that goods are for transit to Nepal only and that the carrier will bear Electronic Cargo Tracking System costs; customs officers must record the transshipment permit and ECTS seal at port of entry and certify at the land customs exit, based on the ECTS trip report, that there was no unauthorised unsealing.