The Sati system was banned by: MCQ with Answer and Explanation

Explanation:
The Government of India Act, 1919, based on the Montagu-Chelmsford Reforms, introduced dyarchy (dual governance) in the provinces, dividing subjects into 'transferred' and 'reserved'.

Explanation:
Jawaharlal Nehru was the president of the historic Lahore session of December 1929, which declared the goal of Purna Swaraj (complete independence).

Explanation:
The Treaty of Purandar was signed on 11 June 1665 between Shivaji and the Mughal general Jai Singh I, obliging Shivaji to cede 23 forts and send his son Sambhaji to the Mughal court.