From 1885 to 1947 the sessions of the Congress were held every year at different stations. One of its important sessions was the Calcutta Session which was held in 1906.When the movement against the partition of Bengal was at its height the annual session of the Congress was held at Calcutta in 1906 under the president ship of Dadabhai Naoroji.
This session is very important because of the following things. It tired to effect conciliation between the Moderates and Extremists.Dadabahi Naoroji's address formed a remarkable departure from the conventional type of Congress addresses. Here he sponsored the new programme of the Congress which had so far been advocated by the extremists. For the first time Calcutta Session (1906) was declared as the aim of the Congress. In his own words, "We want self-government or Calcutta Session (1906) like that of the United Kingdom or dominions. The Swadeshi and the Boycott were accorded full support by the Congress. For the first time Boycott was authorised to be used as a political weapon. The Congress condemned the Partition of Bengal. In the words of DadaBhai Naoroji it is a bad blunder of England. Promotion of education was declared as the aim of the Congress.