Wikipedia article: List of Chief Ministers of West Bengal

Question: who was the chief minister of west bengal
Answer: Since 1947, there have been eight Chief Ministers of West Bengal. The first was Prafulla Chandra Ghosh of the Indian National Congress, who was succeeded by his party - mates Dr Bidhan Chandra Roy and Prafulla Chandra Sen. A decade of instability followed, marred by fractious coalition governments and frequent impositions of President 's rule. The instability ended with 1977 election victory of the Communist Party of India ( Marxist ) ( CPM ). Headed by Jyoti Basu, the CPM - led Left Front government was in office for over 23 years ( 1977 -- 2000 ), making Basu India 's longest - serving chief minister ever. Left rule in West Bengal continued for another 10 years under Buddhadeb Bhattacharya, before its defeat in the 2011 election by the Trinamool Congress. Appointed on 20 May 2011, Trinamool leader Mamata Banerjee is the current incumbent, the state 's first woman chief minister.

Question: who is the 1st chief minister of west bengal
Short answer: Mamata Banerjee is
Answer: Since 1947, there have been eight Chief Ministers of West Bengal. The first was Prafulla Chandra Ghosh of the Indian National Congress, who was succeeded by his party - mates Dr Bidhan Chandra Roy and Prafulla Chandra Sen. A decade of instability followed, marred by fractious coalition governments and frequent impositions of President 's rule. The instability ended with 1977 election victory of the Communist Party of India ( Marxist ) ( CPM ). Headed by Jyoti Basu, the CPM - led Left Front government was in office for over 23 years ( 1977 -- 2000 ), making Basu India 's longest - serving chief minister ever. Left rule in West Bengal continued for another 10 years under Buddhadeb Bhattacharya, before its defeat in the 2011 election by the Trinamool Congress. Appointed on 20 May 2011, Trinamool leader Mamata Banerjee is the current incumbent, the state 's first woman chief minister.

Question: who has held the office for chief minister for the longest time
Short answer: Jyoti Basu Satgacchia
Answer: No Name Took office Left office Duration Assembly ( election ) Party ( alliance ) Premier of West Bengal Prafulla Chandra Ghosh 15 August 1947 22 January 1948 160 days Not yet created Indian National Congress Bidhan Chandra Roy 23 January 1948 25 January 1950 7002733000000000000 ♠ 2 years, 2 days Chief Minister of West Bengal ( 2 ) Bidhan Chandra Roy Bowbazar 26 January 1950 30 March 1952 7003453900000000000 ♠ 12 years, 156 days ( total: 14 years, 158 days ) Not yet created Indian National Congress 31 March 1952 5 April 1957 First Assembly ( 1952 -- 57 ) ( January 1952 election ) 6 April 1957 2 April 1962 Second Assembly ( 1957 -- 62 ) ( March 1957 election ) 3 April 1962 1 July 1962 Third Assembly ( 1962 -- 67 ) ( February 1962 election ) Prafulla Chandra Sen Arambagh East 1 July 1962 28 February 1967 7003170300000000000 ♠ 4 years, 242 days Ajoy Kumar Mukherjee Tamluk 1 March 1967 21 November 1967 265 days Fourth Assembly ( 1967 -- 68 ) ( February 1967 election ) Bangla Congress ( United Front ) ( 1 ) Prafulla Chandra Ghosh Jhargram 21 November 1967 19 February 1968 90 days ( total: 250 days ) Independent ( Progressive Democratic Front ) -- Vacant ( President 's rule ) 20 February 1968 25 February 1969 7002371000000000000 ♠ 1 year, 5 days Dissolved N / A ( 4 ) Ajoy Kumar Mukherjee Tamluk 25 February 1969 30 July 1970 7002520000000000000 ♠ 1 year, 155 days Fifth Assembly ( 1969 -- 70 ) ( February 1969 election ) Bangla Congress ( United Front ) -- Vacant ( President 's rule ) 30 July 1970 2 March 1971 215 days Dissolved N / A ( 4 ) Ajoy Kumar Mukherjee Tamluk 2 April 1971 25 June 1971 84 days ( total: 2 years, 139 days ) Sixth Assembly ( 1971 ) ( March 1971 election ) Indian National Congress -- Vacant ( President 's rule ) 25 June 1971 19 March 1972 268 days Dissolved N / A 5 Siddhartha Shankar Ray Malda 20 March 1972 30 April 1977 7003186700000000000 ♠ 5 years, 41 days Seventh Assembly ( 1972 -- 77 ) ( March 1972 election ) Indian National Congress -- Vacant ( President 's rule ) 30 April 1977 20 June 1977 51 days Dissolved N / A 6 Jyoti Basu Satgacchia 21 June 1977 23 May 1982 7003853800000000000 ♠ 23 years, 137 days Eighth Assembly ( 1977 -- 82 ) ( June 1977 election ) Communist Party of India ( Marxist ) ( Left Front ) 24 May 1982 29 March 1987 Ninth Assembly ( 1982 -- 87 ) ( May 1982 election ) 30 March 1987 18 June 1991 Tenth Assembly ( 1987 -- 91 ) ( March 1987 election ) 19 June 1991 15 May 1996 Eleventh Assembly ( 1991 -- 96 ) ( May 1991 election ) 16 May 1996 5 November 2000 Twelfth Assembly ( 1996 -- 2001 ) ( May 1996 election ) 7 Buddhadeb Bhattacharya Jadavpur 6 November 2000 14 May 2001 7003384000000000000 ♠ 10 years, 188 days 15 May 2001 17 May 2006 Thirteenth Assembly ( 2001 -- 06 ) ( May 2001 election ) 18 May 2006 13 May 2011 Fourteenth Assembly ( 2006 -- 11 ) ( April -- May 2006 election ) 8 Mamata Banerjee Bhabanipur 20 May 2011 25 May 2016 7003236700000000000 ♠ 6 years, 175 days Fifteenth Assembly ( 2011 -- 16 ) ( April -- May 2011 election ) All India Trinamool Congress 27 May 2016 Incumbent Sixteenth Assembly ( 2016 -- 21 ) ( April -- May 2016 election )