543. Birbhum

All India Trinamool Congress held the seat; the winning margin narrowed from 6.0% to 5.3%.

• Won on a lower shareIts own vote share fell 11.7% — it held because the rest of the vote was more divided.
• Vote fragmentedThe top two took only 66.9% between them, down from 89.6% — the field split more ways.
• TurnoutTurnout rose 2.1% to 85.3%.

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