90. Barasat

FBL held the seat; the winning margin narrowed from 18.8% to 13.6%.

• Won on a lower shareIts own vote share fell 12.2% — it held because the rest of the vote was more divided.
• Vote fragmentedThe top two took only 79.5% between them, down from 98.7% — the field split more ways.

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