157. Proddatur

Indian National Congress held the seat; the winning margin widened from 2.5% to 13.4%.

• New challengerCommunist Party of India (CPI) finished second with 34.8% — it did not contest here in 1967.
• Vote fragmentedThe top two took only 83.1% between them, down from 98.2% — the field split more ways.

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