7. Kadirgamam

AINRC held the seat; the winning margin narrowed from 41.9% to 14.1%.

• Won on a lower shareIts own vote share fell 26.7% — it held because the rest of the vote was more divided.
• New challengerIndependent (IND) finished second with 29.2% — it polled just 0.7% in 2011.
• Vote fragmentedThe top two took only 72.5% between them, down from 98.2% — the field split more ways.

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