283. Barbani

All India Trinamool Congress held the seat; the winning margin widened from 13.8% to 14.6%.

• Won on a lower shareIts own vote share fell 5.8% — it held because the rest of the vote was more divided.
• Vote fragmentedThe top two took only 79.6% between them, down from 92.0% — the field split more ways.

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