28. Thanga

Indian National Congress held the seat; the winning margin narrowed from 6.5% to 0.9%.

Boundaries were redrawn between 2007 and 2012 — the comparison is matched by name and is indicative only.

• Won on a lower shareIts own vote share fell 9.0% — it held because the rest of the vote was more divided.
• New challengerAll India Trinamool Congress (AITC) finished second with 25.8% — it did not contest here in 2007.
• Vote fragmentedThe top two took only 52.5% between them, down from 65.0% — the field split more ways.

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