497. Calcutta North West

Indian National Congress held the seat; the winning margin widened from 19.1% to 29.1%.

• New challengerCommunist Party of India (Marxist) (CPM) finished second with 28.1% — it did not contest here in 1967.
• Vote consolidatedThe top two candidates took 85.4% of the vote between them, up from 72.2% — a tighter two-way contest.
• TurnoutTurnout fell 17.3% to 40.0%.

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