Dominance of Congress Party in India was different from the dominance of one party in countries like Cuba, China & Mexico.
(i) Even being a dominant party, free, fair and regular elections were held and voice of the opposition was heard with respect.
(ii) Even in the first general elections, there was government of CPI in Kerela which was not destabilized by the Congress Party in power at the Centre.
(iii) Multi-party system was established as many new political parties emerged.
(iv) Congress worked as social and ideological coalition, also known as a rainbow like coalition, representing India’s diversity, which helped in establishing democratic set-up.