The activities of Swaraj party had induced the British Government to review the working of the diarchy system introduced by the Montague- Chelmsford reforms
Simon commission was opposed because its all members were the English
Lala Lajpat Rai died during the protest of Simon commission
The British Government appointed the Simon commission in Nov., 1927
Mubarak Shah was the second ruler of the Sayyid dynasty which ruled the Delhi Sultanate after the fall of the Tughlaq dynasty. He succeeded his father, Khizr Khan to the throne in 1421 CE.