Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_53 (year INTEGER, lok_sabha VARCHAR)
### Question:
What is the lowest Year, when Lok Sabha is "4th Lok Sabha"?
### Answer:
SELECT MIN(year) FROM table_name_53 WHERE lok_sabha = "4th lok sabha"