Why were the dialogues at the Round Table Conference inconclusive?

The British Government has had the policy to review the progress of self-rule in India and bring reforms after the gap of ten years. This began in 1910 with Morley Minto Reform and was followed in 1920 with Montague Chemsford Report. Ten years later British government invited Round Table Conference in London for the way forward. The First Round Table Conference took place in November, 1930. The Conference failed as the most important stake holder of Indian Freedom Movement, the Indian National Congress was absent in the conference. The leaders of the Congress were behind bars due to civil disobedience movement. The Second Table Conference took pace in February 1931. One month earlier Mahatma Gandhi was released from the jail. Hence, he participated in the conference. Gandhi Irwin pact was signed and the British government agreed to withdraw salt law partly. But the agreement came under criticism as it did not talk about complete independence of India. Third and the most important Round Table Conference took place in the later part of 1931. The new constitutional developments were not agreed upon. The main reason was that the other participants of the conference described Congress as representative of small group of Indians and not the entire population. The major voice of dissent were, the Moslem League that claimed itself the sole representative of the Moslems in India, Dr B.R. Ambedkar claimed himself the sole representative of the low castes in India and the native rulers also claimed they would deal with the British independently and Congress could not have any say in that. To conclude divisive politics of Moslem League, Dr Ambedkar and the attitude of the princely states are the main reasons for the failure of the round table conferences.