136. Sedapatti

All India Anna Dravida Munnetra Kazhagam held the seat; the winning margin narrowed from 19.7% to 6.1%.

• Won on a lower shareIts own vote share fell 12.6% — it held because the rest of the vote was more divided.
• New challengerIndian National Congress (INC) finished second with 41.2% — it did not contest here in 1980.
• Vote fragmentedThe top two took only 88.5% between them, down from 100.0% — the field split more ways.

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