Chief Minister, who remained on the post continuously for a long time in the country

Question: Recently, who amongst the following became the longest serving Chief Minister of Indian State?
(a) Shivraj Singh Chauhan
(b) Gegong Apang
(c) Dr. Raman Singh
(d) Pawan Chamling
Answer: (d)
Related Facts:

  • On April 30th, 2018, Sikkim Chief Minister Pawan Chamling has became the longest serving Chief Minister of Indian State.
  • He broke the record of Jyoti Basu, the Chief Minister of West Bengal. Basu was chief minister for a term of 23 years, 4 months and 17 days.
  • It is worth mentioning that on April 30, 2018, Pawan Chamling completed 23 years, four months and 18 days in his post.
  • He had taken the oath first time, on December 12th, 1994 as Chief Minister of the state.

Reference:
http://www.sikkimexpress.com/NewsDetails?ContentID=10095
http://www.thehindu.com/news/national/pawan-kumar-chamling-becomes-longest-serving-chief-minister-surpassing-jyoti-basus-record/article23720589.ece
http://www.rediff.com/news/report/sikkims-pawan-chamling-becomes-indias-longest-serving-chief-minister/20180430.htm