69. Vandavasi

Dravida Munnetra Kazhagam held the seat; the winning margin narrowed from 19.3% to 1.7%.

• Won on a lower shareIts own vote share fell 21.5% — it held because the rest of the vote was more divided.
• New challengerAll India Anna Dravida Munnetra Kazhagam (AIADMK) finished second with 31.6% — it did not contest here in 2021.
• Vote fragmentedThe top two took only 65.0% between them, down from 90.4% — the field split more ways.

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