10. Motihari

Indian National Congress held the seat; the winning margin narrowed from 7.3% to 3.6%.

• Won on a lower shareIts own vote share fell 3.9% — it held because the rest of the vote was more divided.
• Multi-cornered7 candidates cleared 5% — a genuinely multi-cornered fight.

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