[A] Adopted by the Indian National Congress at its Calcutta Session
[B] Spelt it out in the Indian Independence Act, 1947.
[C] Spelt out in the Objective Resolution moved by Jawahar Lal Nehru and adopted by the Constituent Assembly on 22nd January, 1947
[D] Spelt out by the Chairman of the Drafting Committee Dr. B.R. Ambedkar and adopted on 29th January, 1947