67. Arani

All India Anna Dravida Munnetra Kazhagam held the seat; the winning margin widened from 1.4% to 2.4%.

• Won on a lower shareIts own vote share fell 13.2% — it held because the rest of the vote was more divided.
• Vote fragmentedThe top two took only 64.2% between them, down from 91.6% — the field split more ways.

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