261. Nagercoil

Indian National Congress held the seat; the winning margin narrowed from 27.1% to 15.4%.

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

• New challengerSwatantra Party (SWA) finished second with 38.0% — it did not contest here in 1962.
• Vote consolidatedThe top two candidates took 91.4% of the vote between them, up from 85.6% — a tighter two-way contest.
• TurnoutTurnout rose 6.5% to 71.2%.

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