<P> The Chief Minister of West Bengal is the chief executive of the eastern Indian state of West Bengal . As per the Constitution of India, the governor is a state's de jure head, but de facto executive authority rests with the chief minister . Following elections to the West Bengal Legislative Assembly, the state's governor usually invites the party (or coalition) with a majority of seats to form the government . The governor appoints the chief minister, whose council of ministers are collectively responsible to the assembly . Given that he has the confidence of the assembly, the chief minister's term is for five years and is subject to no term limits . </P> <P> West Bengal origins lie in Bengal, a province of the British Raj that included present - day Bangladesh . Between 1937 and 1947 it was intermittently governed by a popularly elected ministry, whose head is often designated the Premier of Bengal . In 1947, Bengal province was partitioned into the Indian state of West Bengal and East Pakistan . All three erstwhile Bengal premiers--A.K. Fazlul Huq, Khawaja Nazimuddin and H.S. Suhrawardy--became Pakistani citizens; the latter two went on to become Prime Ministers of Pakistan in the 1950s . </P> <P> 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 . </P> <Table> <Tr> <Td> All - India Muslim League All India Trinamool Congress Bangla Congress Communist Party of India (Marxist) Independent Indian National Congress Krishak Praja Party N / A (President's rule) </Td> </Tr> </Table>

Who was the chief minister of west bengal
find me the text answering this question