55. Dibrugarh

Indian National Congress held the seat; the winning margin narrowed from 50.6% to 32.9%.

• Won on a lower shareIts own vote share fell 12.3% — it held because the rest of the vote was more divided.
• New challengerSOC (SOC) finished second with 24.2% — it did not contest here in 1957.
• Vote fragmentedThe top two took only 81.2% between them, down from 88.0% — the field split more ways.
• TurnoutTurnout rose 4.6% to 44.3%.

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