The 'Black Hole' tragedy occurred in: MCQ with Answer and Explanation

Explanation:
The Civil Disobedience Movement was launched on 12 March 1930 when Mahatma Gandhi began the Dandi March from Sabarmati Ashram to Dandi to break the salt law. The march lasted 24 days.

Explanation:
At the Lahore session in 1929, the Congress declared 26 January 1930 as the first Independence Day, and the pledge of Purna Swaraj was taken. This date later became Republic Day.

Explanation:
The Indian Councils Act of 1861 introduced the portfolio system, allowing each member of the Governor-General's council to have a specific department. It was initiated by Lord Canning.