From 2004 to 2014, the Congress - led United Progressive Alliance, a coalition of several regional parties, formed the Indian government, and was headed by Prime Minister Manmohan Singh. The leader of the party during the period, Sonia Gandhi has served the longest term as the president of the party. As of March 2018, the party is in power in three states: Punjab, Karnataka and Mizoram and the union territory of Puducherry.
how many states in india are under congress
three