56. Dibrugarh

Indian National Congress held the seat; the winning margin narrowed from 32.9% to 11.3%.

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 18.9% — it held because the rest of the vote was more divided.
• New challengerSamyukta Socialist Party (SSP) finished second with 26.9% — it did not contest here in 1962.
• Vote fragmentedThe top two took only 65.1% between them, down from 81.2% — the field split more ways.
• TurnoutTurnout rose 6.7% to 51.0%.

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