222. Tenkasi

All India Anna Dravida Munnetra Kazhagam held the seat; the winning margin narrowed from 13.5% to 0.2%.

• Won on a lower shareIts own vote share fell 11.7% — it held because the rest of the vote was more divided.
• New challengerIndian National Congress (INC) finished second with 42.4% — it did not contest here in 2011.
• Vote fragmentedThe top two took only 84.9% between them, down from 95.1% — the field split more ways.

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