CREATE TABLE table_68644 ("Year" FLOAT, "Song" CLOB, "Film" CLOB, "Music director ( s ) " CLOB, "Lyricist" CLOB)

What song was directed by Shankar Jaikishan?
SELECT "Song" FROM table_68644 WHERE "Music director(s)" = 'shankar jaikishan'
SELECT "Song" FROM "table_68644" WHERE "Music director(s)" = 'shankar jaikishan'