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| This article is part of a series on the | 
| Politics of India | 
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Elections in the Republic of India in 1978 included elections to seven state legislative assemblies.
| Date(s) | State | Government before | Chief Minister before | Government after | Elected Chief Minister | Maps | ||
|---|---|---|---|---|---|---|---|---|
| 25 February 1978 | Andhra Pradesh | Indian National Congress (R) | Jalagam Vengala Rao | Indian National Congress (I) | Marri Channa Reddy |   | ||
| Arunachal Pradesh | New State was created | Janata Party | Prem Khandu Thungan |   | ||||
| Assam | Indian National Congress | Sarat Chandra Sinha | Janata Party | Golap Borbora |   | |||
| Karnataka | President's Rule | Indian National Congress (I) | D. Devaraj Urs |   | ||||
| Meghalaya | All Party Hill Leaders Conference | Williamson A. Sangma | All Party Hill Leaders Conference | Darwin Diengdoh Pugh |   | |||
| 25 February 1978 | Maharashtra | Indian National Congress | Vasantdada Patil | Indian National Congress (I) | Vasantdada Patil |   | ||
| Indian National Congress (U) | ||||||||
| 17 and 20 May 1978 | Mizoram |  Mizo Union  (contested as Independent)  | C. Chhunga | Mizoram People's Conference | T. Sailo |   | ||
| PARTY [1] | SEATS | VOTES POLLED | VOTE % IN | |||
| NATIONAL PARTIES | CONTESTED | WON | FD | VOTES | % | SEATS | 
| 1. CPI | 31 | 6 | 12 | 501452 | 2.49% | 23.40% | 
| 2. CPM | 22 | 8 | 1 | 546262 | 2.71% | 34.65% | 
| 3. INC | 257 | 30 | 130 | 3426850 | 17.01% | 19.48% | 
| 4 . INC(I) | 290 | 175 | 18 | 7908220 | 39.25% | 39.69% | 
| 5 . JNP | 270 | 60 | 36 | 5812532 | 28.85% | 31.52% | 
| STATE PARTIES | ||||||
| 6. ADK | 9 | 0 | 9 | 38691 | 0.19% | 6.22% | 
| 7. DMK | 2 | 0 | 2 | 6547 | 0.03% | 4.12% | 
| REGISTERED (Unrecognised) PARTIES | ||||||
| 8. BCM | 2 | 0 | 2 | 2123 | 0.01% | 1.53% | 
| 9. RPI | 1 | 0 | 1 | 500 | 0.00% | 0.69% | 
| 10 . RPK | 13 | 0 | 11 | 53497 | 0.27% | 6.03% | 
| 11 . RRP | 1 | 0 | 1 | 611 | 0.00% | 1.06% | 
| INDEPENDENTS | ||||||
| 12. IND | 640 | 15 | 593 | 1852808 | 9.20% | 11.35% | 
| Grand Total : | 1538 | 294 | 816 | 20150093 | ||
|   | |||||
|---|---|---|---|---|---|
| Party | Votes | % | Seats | +/– | |
| Janata Party | 66,906 | 42.08 | 17 | New | |
| People's Party of Arunachal | 48,075 | 30.24 | 8 | New | |
| Indian National Congress | 720 | 0.45 | 0 | New | |
| Independents | 43,287 | 27.23 | 5 | New | |
| Total | 158,988 | 100.00 | 30 | New | |
| Valid votes | 158,988 | 96.60 | |||
| Invalid/blank votes | 5,599 | 3.40 | |||
| Total votes | 164,587 | 100.00 | |||
| Registered voters/turnout | 224,839 | 73.20 | |||
| Source: ECI [2] | |||||
| Sl No | Party | Abbreviation | Party-type | Contested | Won | Votes polled % | Vote % in seats contested | 
|---|---|---|---|---|---|---|---|
| 1 | Communist Party of India | CPI | National | 35 | 5 | 4.09 | 14.39 | 
| 2 | Communist Party of India (Marxist) | CPM | National | 27 | 11 | 5.62 | 25.87 | 
| 3 | Indian National Congress | INC | National | 126 | 26 | 23.62 | 23.62 | 
| 4 | Indian National Congress (I) | INC(I) | National | 115 | 8 | 8.78 | 9.84 | 
| 5 | Janata Party | JNP | National | 117 | 53 | 27.55 | 29.95 | 
| 6 | All India Forward Bloc | FBL | State | 3 | 0 | 0.09 | 4.28 | 
| 7 | Plain Tribals Council of Assam | PTC | State | 9 | 4 | 2.60 | 32.54 | 
| 8 | Revolutionary Socialist Party (India) | RSP | State | 6 | 0 | 0.44 | 8.85 | 
| 9 | All India Gorkha League | IGL | Registered | 1 | 0 | 0.04 | 6.08 | 
| 10 | Revolutionary Communist Party of India | RCI | Registered | 10 | 4 | 1.40 | 17.68 | 
| 11 | Socialist Unity Centre of India | SUC | Registered | 4 | 0 | 0.07 | 2.29 | 
| 12 | Independent | IND | 15 | 25.67 | 26.50 | ||
| Total | 126 | ||||||
| Source: Statistical Report on Legislative Assembly election of Assam, 1978 | |||||||
| Political Party | Contestants | Seats won | Seat change | Number of votes | Vote share | Net change | |
|---|---|---|---|---|---|---|---|
| Indian National Congress (Indira) | 214 | 149 | 5,543,756 | 44.25% | |||
| Janata Party | 222 | 59 | 4,754,114 | 37.95% | |||
| Communist Party of India | 6 | 3 | 148,567 | 1.19% | |||
| Indian National Congress | 212 | 2 | 1,001,553 | 7.99% | |||
| Republican Party of India | 3 | 1 | 22,443 | 0.18% | |||
| Independents | 10 | 940,677 | 7.51% | N/A | |||
| Total | 224 | 
| Political Party | No. of candidates | No. of elected | Number of Votes | % of Votes | Seat change | |
|---|---|---|---|---|---|---|
| Janata Party | 215 | 99 | 5,701,399 | 27.99% | ||
| Indian National Congress | 259 | 69 | 5,159,828 | 25.33% | ||
| Indian National Congress (Indira) | 203 | 62 | 3,735,308 | 18.34% | ||
| Peasants and Workers Party of India | 88 | 13 | 1,129,172 | 5.54% | ||
| Communist Party of India (Marxist) | 12 | 9 | 345,008 | 1.69% | ||
| All India Forward Bloc | 6 | 3 | 166,497 | 0.82% | ||
| Republican Party of India | 25 | 2 | 215,487 | 1.06% | ||
| Republican Party of India (Khobragade) | 23 | 2 | 287,533 | 1.41% | ||
| Communist Party of India | 48 | 1 | 301,056 | 1.48% | ||
| Independents | 894 | 28 | 2,864,023 | 14.06% | ||
| Total | 1819 | 288 | 20,367,221 | 100% | 
| Parties and coalitions | Popular vote | Seats | ||||
|---|---|---|---|---|---|---|
| Votes | % | ±pp | Won | +/− | ||
| Indian National Congress (INC) | 109,654 | 28.96 | 19.07  | 20 | 11  | |
| All Party Hill Leaders Conference (APHLC) | 94,362 | 24.92 | 10.75  | 16 | 16  | |
| Hill State People's Democratic Party (HSPDP) | 72,852 | 19.24 | 14 [a] | |||
| Indian National Congress (I) | 5,447 | 1.44 | 0 | |||
| Communist Party of India | 2,361 | 0.62 | 0.05  | 0 | ||
| Independents (IND) | 93,970 | 24.82 | 29.04  | 10 [b] | 9  | |
| Total | 378,646 | 100.00 | 60 | ±0 | ||
| Source: Election Commission of India [5] | ||||||
a The HSPDP won 8 seats in the 1972 election, but the party's representatives were recorded as independents at the time of that election. [6]
bTwo candidates from the PDIC were elected, but the party had not obtained registration in time for the election; the party's representatives were recorded as independents in the official results. [7]
|   | |||||
|---|---|---|---|---|---|
| Party | Votes | % | Seats | +/– | |
| Mizoram People's Conference | 52,640 | 37.47 | 22 | ||
| Independents | 87,830 | 62.53 | 8 | ||
| Total | 140,470 | 100.00 | 30 | 0 | |
| Valid votes | 140,470 | 98.71 | |||
| Invalid/blank votes | 1,838 | 1.29 | |||
| Total votes | 142,308 | 100.00 | |||
| Registered voters/turnout | 224,936 | 63.27 | |||
| Source: ECI [8] | |||||