500. Calcutta North West

Indian National Congress held the seat; the winning margin narrowed from 12.7% to 7.9%.

• Won on a lower shareIts own vote share fell 9.6% — it held because the rest of the vote was more divided.
• Vote fragmentedThe top two took only 74.9% between them, down from 89.2% — the field split more ways.
• TurnoutTurnout fell 5.1% to 57.0%.

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