234. Killiyoor

Janata Party held the seat; the winning margin narrowed from 60.0% to 25.5%.

• Won on a lower shareIts own vote share fell 24.9% — it held because the rest of the vote was more divided.
• New challengerDravida Munnetra Kazhagam (DMK) finished second with 28.7% — it did not contest here in 1977.
• Vote fragmentedThe top two took only 83.0% between them, down from 98.4% — the field split more ways.

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