157. Jagatballavpur

Communist Party of India (Marxist) held the seat; the winning margin narrowed from 32.4% to 3.3%.

• Won on a lower shareIts own vote share fell 7.7% — it held because the rest of the vote was more divided.
• New challengerCommunist Party of India (CPI) finished second with 45.9% — it did not contest here in 1971.
• Vote consolidatedThe top two candidates took 95.1% of the vote between them, up from 81.4% — a tighter two-way contest.

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