Born on September 22, 1950, he served as the Chief Minister of the Sikkim Democratic Front Party for 24 years and 165 days
Born on October 16, 1946, he has served as the 15th Chief Minister of Odisha for the Biju Janata Dal Party since 2000
Born on July 8, 1914, he served as the Chief Minister of West Bengal for 23 years and 138 days, from June 1977 to November 2000, representing the Communist Party of India (Marxist)
Born on July 8, 1949, he is serving as Chief Minister of Arunachal Pradesh for 22 years, 250 days, (With multiple parties)
Born on May 19, 1942, he has been serving as the 4th Chief Minister of Mizoram for 22 years and 60 days, representing the Indian National Congress Party
Born on June 23, 1934, he has served as the 4th Chief Minister of Himachal Pradesh for 21 years and 13 days, representing the Indian National Congress party
Born on January 22, 1949, he is served as the Chief Minister of Tripura for 19 years and 363 days, from Communist Party of India (Marxist)
Born on June 3, 1924, he served as the Chief Minister of Tamil Nadu for 18 years and 362 days, representing the Dravida Munnetra Kazhagam party
Born on December 8, 1927, he served as Punjab's chief minister for 18 years and 350 days. He represented the Shiromani Akali Dal Party
Born on August 4,1906, he served as the Chief Minister of Himachal Pradesh for 18 years and 83 days, representing the Indian National Congress Party.