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| Year | Legislature | Party Secretary | Total constituencies | Seats won / contested | Change in seats | Total votes | Per. of votes | Change in vote % | Party Rank | Outcome | Ref. |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1967 | 4th Lok Sabha | Puchalapalli Sundarayya | 520 | 19 / 59 | New | 6,246,522 | 4.28 % | New | 6th | Opposition | [e 1] |
| 1971 | 5th Lok Sabha | 518 | 25 / 85 | 7,510,089 | 5.12 % | Main Opposition | [e 2] | ||||
| 1977 | 6th Lok Sabha | 542 | 22 / 53 | 8,113,659 | 4.29 % | Opposition | [e 3] | ||||
| 1980 | 7th Lok Sabha | E. M. S. Namboodiripad | 529(542*) | 37 / 64 | 12,352,331 | 6.24 % | Opposition | [e 4] | |||
| 1984 | 8th Lok Sabha | 541 | 22 / 64 | 14,272,526 | 5.72 % | Opposition | [e 5] [e 6] | ||||
| 1989 | 9th Lok Sabha | 529 | 33 / 64 | 19,691,309 | 6.55 % | Outside Support | [e 7] | ||||
| 1991 | 10th Lok Sabha | 534 | 35 / 63 | 17,074,699 | 6.14 % | Opposition | [e 8] [e 9] | ||||
| 1996 | 11th Lok Sabha | Harkishan Singh Surjeet | 543 | 32 / 75 | 20,496,810 | 6.12 % | Outside Support | [e 10] | |||
| 1998 | 12th Lok Sabha | 543 | 32 / 71 | 18,991,867 | 5.16 % | Opposition | [e 11] | ||||
| 1999 | 13th Lok Sabha | 543 | 33 / 72 | 19,695,767 | 5.40 % | Opposition | [e 12] | ||||
| 2004 | 14th Lok Sabha | 543 | 43 / 69 | 22,070,614 | 5.66 % | Outside Support | [e 13] | ||||
| 2009 | 15th Lok Sabha | Prakash Karat | 543 | 16 / 82 | 22,219,111 | 5.33 % | Opposition | [e 14] | |||
| 2014 | 16th Lok Sabha | 543 | 9 / 93 | 17,986,773 | 3.24 % | Opposition | [e 15] | ||||
| 2019 | 17th Lok Sabha | Sitaram Yechury | 543 | 3 / 69 | 10,744,908 | 1.75 % | Opposition | [e 16] | |||
| 2024 | 18th Lok Sabha | 543 | 4 / 52 | 11,342,553 | 1.76% | Opposition | [1] |
| All time-CPI(M) Lok Sabha seat count |
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| Election Year | Overall votes | % of overall votes | Total seats | seats won/ seats contensted | +/- in seats | +/- in vote share | Sitting side |
|---|---|---|---|---|---|---|---|
| Andhra Pradesh Legislative Assembly | |||||||
| 2024 | 43,012 | 0.13% | 175 | 0 / 8 | — | — | |
| 2019 | 1,01,071 | 0.32% | 175 | 0 / 7 | — | ||
| 2014 | 4,07,376 | 0.84% | 175 | 1 / 68 | — | ||
| 2009 | 6,03,407 | 1.43% | 294 | 1 / 18 | — | ||
| 2004 | 6,56,721 | 1.84% | 294 | 9 / 14 | — | ||
| 1999 | 5,67,761 | 1.70% | 294 | 2 / 48 | — | ||
| 1994 | 9,23,204 | 2.96% | 294 | 15 / 16 | — | ||
| 1989 | 7,07,686 | 2.96% | 294 | 6 / 15 | — | ||
| 1985 | 5,30,349 | 2.69% | 294 | 11 / 11 | — | ||
| Assam Legislative Assembly | |||||||
| 2021 | 160,758 | 0.84% | 126 | 1 / 2 | Opposition | ||
| 2016 | 93,506 | 0.55% | 126 | 0 / 19 | — | ||
| Bihar Legislative Assembly | |||||||
| 2020 | 274,155 | 0.65% | 243 | 2 / 4 | Opposition | ||
| 2015 | 232,149 | 0.61% | 243 | 0 / 43 | — | ||
| Gujarat Legislative Assembly | |||||||
| 2022 | 10,647 | 0.03% | 182 | 0 / 9 | — | ||
| Haryana Legislative Assembly | |||||||
| 2024 | 34,373 | 0.25% | 90 | 0 / 1 | — | — | |
| Himachal Pradesh Legislative Assembly | |||||||
| 2022 | 27,812 | 0.66% | 68 | 0 / 11 | |||
| 2017 | 55,558 | 1.5% | 68 | 1 / 14 | — | ||
| Jammu and Kashmir Legislative Assembly | |||||||
| 2024 | 33,634 | 0.6% | 90 | 1 / 1 | - | Government | |
| 2014 | 24,017 | 0.5% | 87 | 1 / 3 | — | Opposition | |
| Kerala Legislative Assembly | |||||||
| 2021 | 5,288,502 | 25.38% | 140 | 62 / 77 | Government | ||
| 2016 | 5,365,472 | 26.7% | 140 | 59 / 84 | Government | ||
| 2011 | 4,921,354 | 28.18% | 140 | 45 / 84 | Opposition | ||
| 2006 | 4,732,381 | 30.45% | 140 | 61 / 84 | Government | ||
| 2001 | 3,752,976 | 23.85% | 140 | 24 / 74 | Opposition | ||
| 1996 | 3,078,723 | 21.59% | 140 | 40 / 62 | Government | ||
| 1991 | 3,082,354 | 21.74% | 140 | 28 / 64 | Opposition | ||
| 1987 | 2,912,999 | 22.86% | 140 | 38 / 70 | Government | ||
| 1982 | 1,798,198 | 18.80% | 140 | 26 / 51 | Opposition | ||
| 1980 | 1,846,312 | 19.35% | 140 | 35 / 50 | Government | ||
| 1977 | 1,946,051 | 22.18% | 140 | 17 / 68 | Opposition | ||
| 1970 | 1,794,213 | 23.83% | 140 | 29 / 73 | Opposition | ||
| 1967 | 1,476,456 | 23.51% | 140 | 52 / 59 | Government | ||
| 1965 | 1,257,869 | 19.87% | 140 | 40 / 73 | New | New | — |
| Maharashtra Legislative Assembly | |||||||
| 2024 | 222,277 | 0.36% | 288 | 1 / 3 | Opposition | ||
| 2019 | 204,933 | 0.37% | 288 | 1 / 8 | Opposition | ||
| 2014 | 207,933 | 0.39% | 288 | 1 / 20 | — | ||
| 2009 | 270,052 | 0.60% | 288 | 1 / 20 | — | ||
| Odisha Legislative Assembly | |||||||
| 2024 | 93,295 | 0.37% | 147 | 1 / 7 | — | — | |
| 2019 | 70,119 | 0.32% | 147 | 1 / 8 | — | — | |
| 2014 | 80,274 | 0.40% | 147 | 1 / 8 | — | — | |
| Punjab Legislative Assembly | |||||||
| 2022 | 9,503 | 0.06% | 117 | 0 / 14 | — | — | — |
| Rajasthan Legislative Assembly | |||||||
| 2023 | 382,387 | 0.96% | 200 | 0 / 17 | — | ||
| 2018 | 434,210 | 1.2% | 200 | 2 / 28 | — | ||
| 2013 | 629,002 | 0.9% | 200 | 0 / 38 | — | ||
| Tamil Nadu Legislative Assembly | |||||||
| 2021 | 3,90,819 | 0.85% | 234 | 2 / 6 | Government | ||
| 2016 | 3,07,303 | 0.72% | 234 | 0 / 25 | — | ||
| 2011 | 8,88,364 | 2.40% | 234 | 10 / 12 | Government | ||
| 2006 | 8,72,674 | 2.70% | 234 | 9 / 13 | Government | ||
| Telangana Legislative Assembly | |||||||
| 2023 | 52,364 | 0.22% | 119 | 0 / 19 | — | ||
| 2018 | 91,099 | 0.40% | 119 | 2 / 28 | — | — | |
| Tripura Legislative Assembly | |||||||
| 2023 | 6,22,829 | 24.62% | 60 | 11 / 43 | Opposition | ||
| 2018 | 9,93,605 | 42.22% | 60 | 16 / 57 | Opposition | ||
| 2013 | 10,59,327 | 48.11% | 60 | 49 / 57 | Government | ||
| 2008 | 9,03,009 | 48.01% | 60 | 46 / 56 | Government | ||
| 2003 | 7,11,119 | 46.82% | 60 | 38 / 55 | Government | ||
| 1998 | 6,21,804 | 45.49% | 60 | 38 / 55 | Government | ||
| 1993 | 5,99,943 | 44.78% | 60 | 44 / 51 | Government | ||
| 1988 | 5,20,697 | 45.82% | 60 | 26 / 55 | Opposition | ||
| Uttar Pradesh Legislative Assembly | |||||||
| 2022 | 5617 | 0.01% | 403 | 0 / 1 | — | — | |
| West Bengal Legislative Assembly | |||||||
| 2021 | 2,837,276 | 4.73% | 294 | 0 / 136 | — | ||
| 2016 | 10,802,058 | 19.75% | 294 | 26 / 148 | Opposition | ||
| 2011 | 14,330,061 | 30.08% | 294 | 40 / 213 | Opposition | ||
| 2006 | 14,652,200 | 37.13% | 294 | 176 / 212 | Government | ||
| 2001 | 13,402,603 | 36.59% | 294 | 143 / 211 | Government | ||
| 1996 | 13,670,198 | 37.16% | 294 | 153 / 213 | Government | ||
| 1991 | 11,418,822 | 36.87% | 294 | 182 / 204 | Government | ||
| 1987 | 10,285,723 | 39.12% | 294 | 187 / 212 | Government | ||
| 1982 | 8,655,371 | 38.49% | 294 | 174 / 209 | Government | ||
| 1977 | 5,080,828 | 35.46% | 294 | 178 / 224 | Government | ||