73. Vanur

All India Anna Dravida Munnetra Kazhagam held the seat; the winning margin narrowed from 15.8% to 5.9%.

• Won on a lower shareIts own vote share fell 19.2% — it held because the rest of the vote was more divided.
• Vote fragmentedThe top two took only 67.7% between them, down from 96.1% — the field split more ways.
• TurnoutTurnout fell 2.1% to 78.8%.

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