180. Peravurani

All India Anna Dravida Munnetra Kazhagam held the seat; the winning margin widened from 9.5% to 17.1%.

• New challengerIndian National Congress (INC) finished second with 41.4% — it did not contest here in 1977.
• Vote consolidatedThe top two candidates took 100.0% of the vote between them, up from 68.1% — a tighter two-way contest.

Written from the constituency figures by a fixed set of rules — no language model.