Customs border route designation expands specified land, river and rail crossings with operational restrictions for certain exports. The Central Government, under clauses (b) and (c) of section 7 of the Customs Act, 1962, substitutes the Serial No. 2 entry in Notification No. 63/94-CUSTOMS(NT) to specify authorised land frontiers, land customs stations and the permitted river, rail and road routes between India and Bangladesh, listing detailed Calcutta-Howrah area jetties, ghats, railway stations, district crossings and modal links. The amendment also identifies limited-route commodity restrictions (notably for coal) and updates the official roster of recognised cross-border corridors for customs purposes.