3. Cooch Behar West

Indian National Congress held the seat; the winning margin widened from 9.5% to 17.6%.

• Won on a lower shareIts own vote share fell 7.5% — it held because the rest of the vote was more divided.
• New challengerCommunist Party of India (Marxist) (CPM) finished second with 27.5% — it did not contest here in 1969.
• Vote fragmentedThe top two took only 72.7% between them, down from 95.9% — the field split more ways.

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