K. M. Mani

Karingozhackal Mani Mani (30 January 1933 – 9 April 2019) was an Indian politician and the chairman of Kerala Congress (M), one of the main factions of Kerala Congress, a party famous for farmers politics, church politics and fractionalism.

He remains the longest-serving minister in the Government of Kerala, having continuously represented Pala legislative constituency since its inception in 1965 until his death in 2019. Provided by Wikipedia