The Second session of the Indian National Congress was held in 1886 in Calcutta.
The President of the session was Dadabhai Naoroji. The second session was very important on various grounds.
(1) Leaders of Bengal joined the congress from this session. This increased the strength of the Congress considerably.
(2) Participation of members steadily increased from this session of the congress.
(3) From this session onwards the session of the congress used to be held in December each year at different places of the country.
(4) In this session the Indian Association merged with the Indian National Congress. This increased the strength and influence of the Indian National Congress.