The activities of Swaraj party had induced the British Government to review the working of the diarchy system introduced by the Montague- Chelmsford reforms
Lala Lajpat Rai died during the protest of Simon commission
The British Government appointed the Simon commission in Nov., 1927
Simon commission was opposed because its all members were the English
Iitutmish , the Sultan of Delhi, was contemporary of Mongol leader Chengiz Khan. In 1221 A.D., there was a danger of expected attack of Chengiz khan on Delhi.
Alauddin Kalji introduced an innovative Chehra and Dagh System wherein the Chehra system involved the detailed description of each soldier and Dagh system involved branding of horses. Strict review of the army from time totime was carried out.
EXAMIANS