CREATE TABLE table_name_72 (reserved_for___sc___st__none_ VARCHAR2, constituency_number VARCHAR2)

What was reserved in the district that has 169 constituents?
SELECT reserved_for___sc___st__none_ FROM table_name_72 WHERE constituency_number = "169"
SELECT "reserved_for___sc___st__none_" FROM "table_name_72" WHERE "169" = "constituency_number"