280. Katwa

Communist Party of India (Marxist) held the seat; the winning margin narrowed from 10.7% to 3.5%.

• Won on a lower shareIts own vote share fell 12.1% — it held because the rest of the vote was more divided.
• Vote fragmentedThe top two took only 80.7% between them, down from 97.7% — the field split more ways.

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