78. Purnea

Indian National Congress held the seat; the winning margin narrowed from 32.6% to 2.0%.

Boundaries were redrawn between 1962 and 1967 — the comparison is matched by name and is indicative only.

• Won on a lower shareIts own vote share fell 23.5% — it held because the rest of the vote was more divided.
• New challengerSamyukta Socialist Party (SSP) finished second with 29.5% — it did not contest here in 1962.
• Vote fragmentedThe top two took only 61.0% between them, down from 77.4% — the field split more ways.
• TurnoutTurnout rose 5.4% to 47.9%.

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