412. Tenkasi

Communist Party of India held the seat; the winning margin narrowed from 17.2% to 4.6%.

Boundaries were redrawn between 2004 and 2009 — the comparison is matched by name and is indicative only.

• Won on a lower shareIts own vote share fell 11.2% — it held because the rest of the vote was more divided.
• New challengerIndian National Congress (INC) finished second with 33.0% — it did not contest here in 2004.
• Vote fragmentedThe top two took only 70.7% between them, down from 80.6% — the field split more ways.
• TurnoutTurnout rose 4.5% to 70.1%.

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