Explanation :

On 3rd June, 2020, the government announced the renaming of Kolkata Port Trust after Syama Prasad Mukherjee at a function to mark the 150th-anniversary celebrations of the port trust

Kolkata Port

• The Kolkata Port is the first Major Port as well as the only riverine port of the country.
• It came to be governed by a Trust on October 17, 1870, on appointment of the Commissioners for Improvement of the Port of Calcutta as per Act V of 1870.
• It features in The First Schedule, Part I—Major Ports of the Indian Ports Act, 1908 and is governed by the Major Port Trusts Act, 1963.