

In theRepublic of India, achief minister is thehead of government of each of thetwenty-eight states and three of the eightunion territories. According to theConstitution of India, at the state level, thegovernor isde jure head, butde facto executive authority rests with the chief minister. Following elections to theState Legislative Assembly, the governor usually invites the party (or coalition) with a majority of seats to form thestate government. The governor appoints the chief minister, whosecouncil of ministers arecollectively responsible to the assembly. Out of the thirty incumbents, exceptTamil Nadu'sM. K. Stalin, all other chief ministers also act as the leader of the house in theirlegislative assemblies. Given they have the assembly's confidence, the chief minister's term is usually for a maximum of five years; there are no limits to thenumber of terms they can serve.[1]
Mamata Banerjee the Chief Minister ofWest Bengal, who has thelongest continuous incumbency serving since 20 March 2011 (for 14 years, 187 days) andRekha Gupta ofDelhi are the only two incumbentfemale Chief Ministers.
Kerala'sPinarayi Vijayan (aged 80) is the oldest andPema Khandu (aged 46), the Chief Minister ofArunachal Pradesh is the youngest.
Nitish Kumar of Bihar has served for the most terms (ten).[a][2]
Fourteen incumbents belong to theBharatiya Janata Party andthree to theIndian National Congress, No other party has more than one chief minister in office. At present one state is under president rule.
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