Port renaming updates a customs notification, replacing Nhava Sheva with Jawaharlal Nehru Port across the notification table. Amendment under powers of section 4(1) of the Customs Act substitutes port nomenclature in clause (c) of Item No. 1 of Notification No. 251/83 Customs: column 1 replaces 'The Port of Nhava Sheva' with 'the Jawaharlal Nehru Port', and columns 2-4 replace every occurrence of 'Nhava Sheva' with 'Jawaharlal Nehru Port'.