In the Republic of India, a chief minister is the head of government of each of the twenty-eight states and three of the eight union territories. According to the Constitution of India, at the state level, the governor is de jure head, and the de facto executive authority rests with the chief minister. Following elections to the legislative assembly, the governor usually invites the party (or coalition) with a majority of seats to form the government. The governor appoints the chief minister, whose council of ministers are collectively responsible to the assembly. Given they have the assembly's confidence, the chief minister's term is for a maximum of five years. There are no limits to the number of terms they can serve. [1]
The chief minister usually serves as the leader of the house in the respective legislative assembly. [2] Out of the thirty incumbents, except Tamil Nadu's M. K. Stalin, [a] all other chief ministers also act as the leader of the house.
Of the 31 incumbents, fifteen incumbents belong to the Bharatiya Janata Party and three to the Indian National Congress, with no other party having more than one chief minister in office. Nitish Kumar from Bihar, has had the longest tenure (19 years, 170 days) as a chief minister. [4] Mamata Banerjee of West Bengal, serving since 20 March 2011 (for 14 years, 263 days), has the longest continuous incumbency. Kerala's Pinarayi Vijayan (aged 80) is the oldest and Pema Khandu (aged 46), from Arunachal Pradesh is the youngest. Banejee and Delhi's Rekha Gupta are the only two incumbent female chief ministers.