4. Barjala

The seat changed hands: Indian National Congress (INC) lost it to Communist Party of India (Marxist) (CPM), which now leads by 34.9%.

Boundaries were redrawn between 1972 and 1977 — the comparison is matched by name and is indicative only.

• CPM vote shareCPM went from 34.4% to 58.8% of the vote here (+24.4%).
• New challengerTCD (TCD) finished second with 23.8% — it did not contest here in 1972.
• Vote fragmentedThe top two took only 82.6% between them, down from 90.1% — the field split more ways.

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