Step 1: Overview of the Calcutta Corporation Act.
The Calcutta Corporation Act was passed in 1899 during the reign of Lord Curzon. It aimed at improving the administration of the city of Calcutta by increasing the representation of the British government in the corporation.
Step 2: Analysis of options.
- (A) Lord Dalhousie: Lord Dalhousie was not the one under whose reign the Calcutta Corporation Act was passed.
- (B) Lord Curzon: The Calcutta Corporation Act was passed during Lord Curzon's tenure as the Viceroy of India.
- (C) Lord Ripon: Lord Ripon did not pass the Calcutta Corporation Act.
- (D) Lord Lytton: The Calcutta Corporation Act was not passed during Lord Lytton's reign.
Step 3: Conclusion.
The Calcutta Corporation Act was passed during Lord Curzon's reign, so the correct answer is (B) Lord Curzon.