13. Machilipatnam

Indian National Congress held the seat; the winning margin narrowed from 55.5% to 16.8%.

Boundaries were redrawn between 1971 and 1977 — the comparison is matched by name and is indicative only.

• Won on a lower shareIts own vote share fell 17.9% — it held because the rest of the vote was more divided.
• New challengerBLD (BLD) finished second with 40.6% — it did not contest here in 1971.
• TurnoutTurnout rose 3.7% to 71.1%.

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