279. Nalhati

Independent held the seat; the winning margin narrowed from 20.9% to 16.8%.

• Won on a lower shareIts own vote share fell 14.1% — it held because the rest of the vote was more divided.
• Vote fragmentedThe top two took only 62.5% between them, down from 86.6% — the field split more ways.

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