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By-elections to Natham and Thiruvattar constituencies were held in Tamil Nadu, India, on 5 and 11 September 1999 respectively. Elections for three state assembly constituencies, Nellikuppam, Tiruchirappalli - II and Arantangi were held on 17 February 2000.
In the first phase, TMC lost a seat to AIADMK and Dravida Munnetra Kazhagam (DMK) lost a seat to Communist Party of India (Marxist) (CPI (M)). In the second phase, AIADMK splinter party MADMK, was able to pick up a seat from AIADMK and DMK was able to hold on to its seats.
Results
| DMK+ | SEATS | ADMK+ | SEATS | TMC+ | SEATS | OTHERS | SEATS |
|---|---|---|---|---|---|---|---|
| DMK | 172 (-1) | AIADMK | 4 | TMC | 38 (-1) | CPI | 8 |
| BJP | 1 | PMK | 4 | CPM | 2 (+1) | ||
| MADMK | 1 (+1) | INC | 0 | FBL | 1 | ||
| MDMK | 0 | JD | 1 | ||||
| JP | 1 | ||||||
| IND | 1 | ||||||
| TOTAL (2000) | 174 | TOTAL (2000) | 8 | TOTAL (2000) | 38 | TOTAL (2000) | 14 |
| TOTAL (1996) | 221 | TOTAL (1996) | 8 | TOTAL (1996) | n/a | TOTAL (1996) | 5 |
- The number on the left, in the table, represents the total number of MLAs after the by-election, and the number in parenthesis represents, the seats picked up or lost due to the by-election
- The numbers presented for 1996, represents, the alliance, when the TMC and the left allied with the DMK.
Constituents and results
Source: Election Commission of India[1][2]
Natham
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Thiruvattar
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Nellikuppam
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Tiruchirappalli - II
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Arantangi
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