Title: List of current Indian chief ministers
Content:  there are no limits to the number of terms they can serve. , the office of the chief minister of Jammu and Kashmir is vacant. Of the thirty incumbents, one is a woman—Mamata Banerjee in West Bengal. Serving since 5 March 2000 (for 22 years, 76 days), Odisha's Naveen Patnaik has the longest incumbency. Zoramthanga (b. 13 July 1944) of Mizoram is the oldest serving Chief Minister, while Arunachal Pradesh's Pema Khandu (b. 21 August 1979) is the youngest Chief Minister. Nitish Kumar of Bihar has served for the most terms (7). Twelve incumbents belong to the Bharatiya Janata Party and three to the Indian National Congress; no other party has more than one chief minister in office.
Title: List of longest-serving Indian chief ministers
Content: Key ; Incumbent Chief Minister ; Died in office ; Indicates the Chief Minister was associated with multiple political party This list details chief ministers of Indian states and union territories who have served for the longest years consecutively or otherwise. This list includes chief ministers who have served for more than 10 years in office. 
Title: List of chief ministers of Andhra Pradesh
Content:  Naidu from Telugu Desam Party held the office for over thirteen years in multiple tenure. The Indian National Congress's Kasu Brahmananda Reddy has the second-longest tenure and the Telugu Desam Party's founder N. T. Rama Rao, the second actor to become the chief minister in India has the third-longest tenure, while N. Bhaskara Rao from same party has the shortest tenure (only 31 days). One chief minister, Neelam Sanjeeva Reddy of the Indian National Congress party, later became the president of India. while another, P. V. Narasimha Rao of the same party, later became the prime minister of India. There have been three instances of president's rule in Andhra Pradesh, most recently in 2014. The current incumbent is Y. S. Jagan Mohan Reddy of the YSR Congress Party since 30 May 2019.
Title: List of chief ministers of Madhya Pradesh
Content:  Following Madhya Pradesh's reorganisation on 1 November 1956, 18 people have served as its chief minister. Twelve of these belonged to the Indian National Congress, including the inaugural officeholder Ravishankar Shukla. The first non-Congress chief minister was Govind Narayan Singh who defected from the party and lead a Samyukta Vidhayak Dal government from 1967 to 1969. Digvijaya Singh of the Congress became the first officeholder to serve two full five-year terms. He was succeeded by Uma Bharti of the Bharatiya Janata Party, Madhya Pradesh's only woman chief minister. Shivraj Singh Chouhan of the Bharatiya Janata Party is the longest serving and current incumbent.
Title: List of chief ministers of Tamil Nadu
Content:  ministers, 12 including V. R. Nedunchezhiyan who twice acted in the role. A majority of them belonged to the All India Anna Dravida Munnetra Kazhagam party. The longest-serving chief minister, M. Karunanidhi from Dravida Munnetra Kazhagam held the office for over eighteen years in multiple tenure, while he was the one who had the largest gap between two terms (nearly thirteen years). The All India Anna Dravida Munnetra Kazhagam's J. Jayalalithaa has the second-longest tenure and the party's founder M. G. Ramachandran, the first actor to become the chief minister in India has the third-longest tenure, while his wife V. N. Janaki Ramachandran has the shortest tenure (only 23 days). One chief minister, K. Kamaraj, 
Title: List of chief ministers of Jharkhand
Content:  from the BJP, is the longest-serving chief minister; he served for over five years, across three terms but never completed a full term. Two chief ministers, Shibu Soren and his son Hemant Soren, represented the Jharkhand Mukti Morcha (JMM). Shibu Soren's first term ended in just ten days, as he could not prove that he had the support of a majority of the house and was forced to resign. The state has also been governed by Madhu Koda, one of the few independents to become the chief minister of any state. In between their reigns, the state has also been under President's rule three times. Raghubar Das, of the BJP, was the first chief minister to complete a full term in the state. Hemant Soren of the Jharkhand Mukti Morcha is the incumbent chief minister.
Title: Mohan Lal Sukhadia
Content:  Vyas, Congress High command directed him to seek Vote of Confidence of Congress legislative members. Veteran Jai Narayan Vyas was directly pitched against the 38-year-old Revenue Minister of his own cabinet, Shri Mohan Lal Sukhadia. First time in history of Democratic India, two people were openly contesting for post of Chief Minister. Sukhadia defeated him by 8 votes to become youngest Chief Minister of India. He continued on this post for record making 17 years(13 Nov 1954 – 8 July 1971). His record of longest-serving Chief Minister in Indian political history was untouched until Jyoti Basu surpassed it in 1994.
Title: List of chief ministers of Haryana
Content:  Chief Minister of Haryana. The first was B. D. Sharma of the Indian National Congress party. Bhajan Lal Bishnoi is Haryana's longest-serving chief minister; he held office for 11 years 10 Months (4317 Days), Bansi Lal held office for 4268 Days. Devi Lal the fifth Chief Minister of Haryana, went on to twice serve as Deputy Prime Minister of India under prime ministers V. P. Singh and Chandra Shekhar. Om Prakash Chautala has served the most discontinuous stints as Chief Minister (four), as a member of three parties. The incumbent chief minister is Manohar Lal Khattar, the first officeholder from the BJP, who was sworn in on 26 October 2014.
Title: List of chief justices of India
Content: 16th Chief Justice Yeshwant Vishnu Chandrachud is the longest-serving Chief Justice, serving over 7 years (1978-February – 1985-July). ; 22nd Chief Justice Kamal Narain Singh is the shortest-serving, for 17 days (November 25 1991 – December 12 1991). 
Title: List of chief ministers from the Bharatiya Janata Party
Content:  Lal Khattar in Haryana, Jai Ram Thakur in Himachal Pradesh, Basavaraj Bommai in Karnataka, Shivraj Singh Chouhan in Madhya Pradesh, N. Biren Singh in Manipur, Biplab Kumar Deb in Tripura, Pushkar Singh Dhami in Uttarakhand, and Yogi Adityanath in Uttar Pradesh. Four of the BJP chief ministers have been women — Sushma Swaraj in Delhi, Uma Bharti in Madhya Pradesh, Anandiben Patel in Gujarat and Vasundhara Raje in Rajasthan. Raman Singh, who was chief minister of Chhattisgarh for 15 years and 9 days between December 2003 and December 2018 has been the longest-serving chief minister from the BJP. Devendra Fadnavis's second tenure as the chief minister of Maharashtra lasted for only three days, which is the 

Question: who is the longest serving chief minister in india as on jan 2015?
Answer: Jyotirindra Basu.