176. Pattukkottai

Indian National Congress held the seat; the winning margin narrowed from 12.2% to 6.0%.

Boundaries were redrawn between 2006 and 2011 — the comparison is matched by name and is indicative only.

• Won on a lower shareIts own vote share fell 8.8% — it held because the rest of the vote was more divided.
• Runner-up changedSecond place passed from Marumalarchi Dravida Munnetra Kazhagam (MDMK) to Desiya Murpokku Dravida Kazhagam (DMDK).
• Vote fragmentedThe top two took only 69.8% between them, down from 81.2% — the field split more ways.

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