179. Viralimalai

All India Anna Dravida Munnetra Kazhagam held the seat; the winning margin narrowed from 28.5% to 5.0%.

• Won on a lower shareIts own vote share fell 6.3% — it held because the rest of the vote was more divided.
• Vote consolidatedThe top two candidates took 94.4% of the vote between them, up from 83.5% — a tighter two-way contest.

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