The Indian Statutory Commission was appointed in 1927 (arriving in India in 1928) to study the implementation of the Government of India Act 1919 and suggest further constitutional reforms.
Simon Commission (B): It was popularly known by this name because it was headed by Sir John Simon. The commission faced widespread protests and the slogan "Simon Go Back" because it did not include a single Indian member.
Cripps Mission (A): This was a 1942 initiative by the British government to secure full Indian cooperation for World War II, led by Sir Stafford Cripps.
Minto-Morley Reforms (C): As discussed previously, this refers to the Indian Councils Act of 1909.
Montagu-Chelmsford Reforms (D): This refers to the Government of India Act 1919, which the Simon Commission was eventually sent to review.
Answer verified by Quintessence Classes faculty — Karan Nagar, Srinagar.