177. Peravurani

Dravida Munnetra Kazhagam held the seat; the winning margin narrowed from 13.8% to 1.8%.

• Won on a lower shareIts own vote share fell 17.6% — it held because the rest of the vote was more divided.
• Vote fragmentedThe top two took only 67.3% between them, down from 90.6% — the field split more ways.

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