Phase 1
date of notification
last date of nominations
date for scrutiny of nominations
date of poll
date of counting
Phase 2
date of notification
last date of nominations
date for scrutiny of nominations
date of poll
date of counting
Phase 3
date of notification
last date of nominations
date for scrutiny of nominations
date of poll
date of counting
Phase 4
date of notification
last date of nominations
date for scrutiny of nominations
date of poll
date of counting
Phase 5
date of notification
last date of nominations
date for scrutiny of nominations
date of poll
date of counting
Phase 6
date of notification
last date of nominations
date for scrutiny of nominations
date of poll
date of counting
Phase 7
date of notification
last date of nominations
date for scrutiny of nominations
date of poll
date of counting
Phase 8
date of notification
last date of nominations
date for scrutiny of nominations
date of poll
date of counting
| Name | Duration | Party |
|---|---|---|
| Prafulla Chandra Ghosh | Aug 15, 1947 - Jan 14, 1948 | INC |
| Bidhan Chandra Roy | Jan 14, 1948 - 1 July 1962 | INC |
| President's rule | Jul 1, 1962 - Jul 8, 1962 | |
| Prafulla Chandra Sen | Jul 8, 1962 - Mar 15, 1967 | INC |
| Ajoy Kumar Mukherjee | Mar 15, 1967 - Nov 2, 1967 | BAC |
| Prafulla Chandra Ghosh | Nov 2, 1967 - Feb 20, 1968 | Independent Progressive Democratic Alliance Front |
| President's rule | Feb 20, 1968 - Feb 25, 1969 | |
| Ajoy Kumar Mukherjee | Feb 25, 1969 - Mar 19, 1970 | BAC |
| President's rule | Mar 19, 1970 - Apr 2, 1971 | |
| Prafulla Chandra Ghosh | Apr 2, 1971 - Jun 28, 1971 | INC |
| President's rule | Jun 28, 1971 - Mar 19, 1972 | |
| Siddhartha Shankar Ray | Mar 19, 1972 - Jun 21, 1977 | INC |
| Jyoti Basu | Jun 21, 1977 - Nov 6, 2000 | CPM |
| Buddhadeb Bhattacharya | Nov 6, 2000 - May 13, 2011 | CPM |
| Mamata Banerjee | May 20, 2011 - May 27, 2016 | AITC |
| Mamata Banerjee | May 27, 2016 - Present | AITC |