525. Kolkata Uttar

All India Trinamool Congress held the seat; the winning margin narrowed from 12.5% to 10.1%.

• Won on a lower shareIts own vote share fell 16.5% — it held because the rest of the vote was more divided.
• Runner-up changedSecond place passed from Communist Party of India (Marxist) (CPM) to Bharatiya Janata Party (BJP).
• Vote fragmentedThe top two took only 61.8% between them, down from 92.5% — the field split more ways.
• TurnoutTurnout rose 2.5% to 66.7%.

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