15. Kamalasagar

Communist Party of India (Marxist) held the seat; the winning margin narrowed from 37.9% to 2.9%.

• Won on a lower shareIts own vote share fell 7.3% — it held because the rest of the vote was more divided.
• Runner-up changedSecond place passed from Janata Party (JNP) to Indian National Congress (INC).
• Vote consolidatedThe top two candidates took 98.8% of the vote between them, up from 78.4% — a tighter two-way contest.

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