189. Chandannagore

All India Trinamool Congress held the seat; the winning margin narrowed from 27.1% to 1.3%.

• Won on a lower shareIts own vote share fell 15.9% — it held because the rest of the vote was more divided.
• Vote fragmentedThe top two took only 88.4% between them, down from 94.4% — the field split more ways.

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