5. Nazibabad

Communist Party of India (Marxist) held the seat; the winning margin narrowed from 7.6% to 4.1%.

• Won on a lower shareIts own vote share fell 4.8% — it held because the rest of the vote was more divided.
• Runner-up changedSecond place passed from Bharatiya Janata Party (BJP) to Bahujan Samaj Party (BSP).
• Vote fragmentedThe top two took only 63.8% between them, down from 69.8% — the field split more ways.

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