Describe the demonstration against the Simon Commission led by Lala Lajpat Rai.

While leading a procession at Lahore against the Simon Commission on 30 October, 1928, Lala Lajpat Rai was assaulted by a British sergeant. He sustained injuries from which he could not recover. He died on 17 November, 1928. Lalaji's valour endeared him to the people who called him Sher-i-Punjab, i.e., Lion of Punjab. Lala Lajpat Rai was a born fighter. He had a genuine love for the masses and the suffering people. On the day he was wounded, he said, "Lathi blows inflicted on me would prove someday as nails in the coffin of the British empire."