The meeting of Indian and British political leaders during 1930-32 in London has often been referred to as the First, Second & Third Round Table Conferences. It would be incorrect to refer to them as such because:

the Indian National Congress did not take part in two of them

Indian parties other than the Indian National Congress, participating in the conference represented sectional interests and not the whole of India

the British Labour Party had withdrawn from the conference thereby making the proceeding of the conference partisan

It was an instance of a conference held in three sessions and not that of three separate conference