The Indian National Congress (pronunciation (help·info)) (INC, often called the Congress), is one of two major political parties in India; the other being the Bharatiya Janata Party. Congress is one of the largest and oldest democratically run political parties in the world.he history of the Indian National Congress (INC) falls into two distinct eras: 1  The pre-independence era, when the party was the umbrella organisation leading the campaign for independence; 2  The post-independence era, when the party has had a prominent place in Indian politics.